AST Practice Test - Part 1 Of 2
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In an inguinal herniorrhaphy the spermatic cord is
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Ligated with a hemoclip
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Retracted witha Penrose drain
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Incised for ease of access
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Clamped with a Kelly
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250 question practice exam for AST certification. Topics covered are basic sciences, preoperative patient care, preoperative case management, intraoperative case management, postoperative case management, surgical specialties/procedures, and ancillary functions.
Part 1: questions 1-135
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- 2.
Polyglycolic acid sutures are
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Absorbed by an enzyme action
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Absorbed by the process of hydrolysis
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Nonabsorbable
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Encapsulated by body tissue
Correct Answer
A. Absorbed by the process of hydrolysisExplanation
Polyglycolic acid sutures are absorbed by the process of hydrolysis. Hydrolysis is a chemical reaction in which a compound is broken down by reacting with water. In the case of polyglycolic acid sutures, they are broken down into smaller molecules by the action of water molecules, allowing for their absorption by the body. This process is different from enzyme action or encapsulation by body tissue, as it involves the breakdown of the sutures through a chemical reaction with water.Rate this question:
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- 3.
The pounds of pressure necessary in a flash steam sterilizer set at 270F is
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15
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17
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20
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27
Correct Answer
A. 27Explanation
Flash steam sterilizers are used to sterilize medical equipment and supplies. The temperature at which the sterilizer is set determines the pounds of pressure necessary for proper sterilization. In this case, the sterilizer is set at 270F, which requires a pounds of pressure of 27. This means that the steam inside the sterilizer needs to reach a pressure of 27 pounds per square inch (psi) in order to effectively sterilize the items.Rate this question:
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- 4.
A patient is having elective surgery. The nurse notes that her white cell count is 14,000 cu mm. This would indicate
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There may be an inflammation or infection present
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The count is within normal range, and surgery can proceed
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The count is below normal
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There may be an anemic condition present, and surgery should be canceled
Correct Answer
A. There may be an inflammation or infection presentExplanation
A white cell count of 14,000 cu mm is higher than the normal range, which typically falls between 4,500 and 11,000 cu mm. This elevated count suggests that there may be an inflammation or infection present in the patient's body. Inflammation and infection can cause an increase in white blood cells as the body's immune system responds to fight off the invader. It is important to note this finding before proceeding with elective surgery, as the presence of inflammation or infection may increase the risk of complications during the procedure.Rate this question:
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- 5.
Distal refers to
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Closer to the body
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Away from the body
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In the center of the body
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Toward the feet
Correct Answer
A. Away from the bodyExplanation
Distal refers to a position or location that is farther away from the body. It is the opposite of proximal, which means closer to the body. Therefore, the correct answer is "away from the body".Rate this question:
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- 6.
Meckel's diverticulum is found in the
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Esophagus
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Sigmoid colon
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Ileum
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Duodenum
Correct Answer
A. IleumExplanation
Meckel's diverticulum is an abnormal pouch-like structure that is present in the small intestine, specifically in the ileum. It is a congenital condition that occurs due to incomplete closure of the omphalomesenteric duct during fetal development. This diverticulum can cause various complications such as intestinal obstruction, bleeding, and inflammation. It is important to identify and surgically remove Meckel's diverticulum if it causes symptoms or complications. Therefore, the correct answer is ileum.Rate this question:
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- 7.
In which case would a Frazier suction be used?
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Eye
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Ear
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Gynecology
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General
Correct Answer
A. EarExplanation
A Frazier suction would be used in the case of ear procedures. The Frazier suction is a specialized tool designed for delicate and precise suctioning in the ear. It has a fine, slender tip that allows for accurate suctioning of fluids or debris from the ear canal during procedures such as ear surgeries or ear cleanings. This suction is specifically designed for ear procedures and is not commonly used in other medical specialties.Rate this question:
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- 8.
Airborne contamination is reduced by recirculation of filtered outside air at a rate of
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12 air exchanges per minute
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12 air exchanges per hour
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20 air exchanges per minute
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25 air exchanges per hour
Correct Answer
A. 25 air exchanges per hourExplanation
The correct answer is 25 air exchanges per hour. This means that the air inside a space is completely replaced with filtered outside air 25 times in one hour. This high rate of air exchange helps to reduce airborne contamination by constantly bringing in fresh, clean air and removing any pollutants or contaminants that may be present in the indoor environment. The more air exchanges per hour, the more effective the reduction of airborne contamination.Rate this question:
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- 9.
The purpose of OSHA is to
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Ensure safe and healthful working conditions
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Provide a mechanism for peer review
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Establish quality assurance
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Provide standards of patient care
Correct Answer
A. Ensure safe and healthful working conditionsExplanation
The purpose of OSHA (Occupational Safety and Health Administration) is to ensure safe and healthful working conditions. OSHA is responsible for developing and enforcing regulations that protect workers from hazards in the workplace. They set standards for safety and health, conduct inspections, provide training and education, and promote research to improve workplace safety. By ensuring safe and healthful working conditions, OSHA aims to prevent workplace accidents, injuries, and illnesses, and protect the well-being of workers.Rate this question:
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- 10.
Body heat in pediatric patients is controlled with all of the following EXCEPT
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Wrapping child in plastic materials
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Warming blanket
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Increasing room temperature
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Hot water bottles
Correct Answer
A. Hot water bottlesExplanation
Hot water bottles are not used to control body heat in pediatric patients. They can potentially cause burns or injuries to the child's skin. Therefore, hot water bottles are not a recommended method for regulating body temperature in pediatric patients.Rate this question:
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- 11.
If a family is contacted but cannot come in to sign a permission for emergency surgery, the surgeon should
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Wait until they arrive
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Accept permission by phone, telegram, or in written communication
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Ask another physician to sign
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Refuse to do the case
Correct Answer
A. Accept permission by phone, telegram, or in written communicationExplanation
If a family is contacted but cannot come in to sign a permission for emergency surgery, the surgeon should accept permission by phone, telegram, or in written communication. This is because emergency surgery may be a matter of life or death, and waiting for the family to arrive may cause unnecessary delays and put the patient's life at risk. Accepting permission through alternative means ensures that the necessary medical intervention can be carried out promptly while still respecting the family's wishes.Rate this question:
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- 12.
Unwrapped instruments are sterilized at 270F (132C) for a minimum of
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3 minutes
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5 minutes
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7 minutes
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10 minutes
Correct Answer
A. 3 minutesExplanation
In order to sterilize unwrapped instruments, they need to be exposed to a high temperature for a specific amount of time. The correct answer is 3 minutes. This means that the instruments should be subjected to a temperature of 270F (132C) for at least 3 minutes to ensure effective sterilization.Rate this question:
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- 13.
A retention suture passes through all fo the following EXCEPT
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Mesentary tissue
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Rectus muscle
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Fascial tissue
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Subcutaneous tissue
Correct Answer
A. Mesentary tissueExplanation
A retention suture is a type of surgical suture used to hold tissues together and prevent them from separating. It is typically used in cases where there is a risk of wound dehiscence or tissue separation. The suture passes through various layers of tissue to provide strong support. In this case, the correct answer is mesentery tissue. The mesentery is a fold of tissue that attaches the intestines to the abdominal wall and contains blood vessels, nerves, and lymphatics. It is not typically included in a retention suture as it is not directly involved in holding the tissues together.Rate this question:
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- 14.
A hernia that passes through the inguinal ring into the inguinal canal is termed
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Direct
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Indiret
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Pantaloon
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Sliding
Correct Answer
A. IndiretExplanation
An indirect hernia occurs when a portion of the intestine or other abdominal tissue pushes through the inguinal ring and into the inguinal canal. The inguinal ring is a natural opening in the abdominal wall, and the inguinal canal is a passage that extends from the inguinal ring to the scrotum in males or the labia majora in females. In an indirect hernia, the herniated tissue follows the same pathway as the descent of the testes during fetal development. This type of hernia is more common in males and is typically congenital or acquired due to weakness in the abdominal wall.Rate this question:
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- 15.
Dead space is the space
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That has no blood supply
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Caused by separation of wound edges that have not been closely approximated
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Where the tissue has been approximated with sutures
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Where the suture line has broken down
Correct Answer
A. Caused by separation of wound edges that have not been closely approximatedExplanation
Dead space is the space that occurs when the edges of a wound are not properly brought together or approximated. This can happen when the wound edges are separated and not closely aligned, leading to a gap or space between them. This can result in a lack of blood supply to the area, as well as hinder the healing process.Rate this question:
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- 16.
Wrapped tubing can be sterilized at 250F for a minimum of
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5 minutes
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10 minutes
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20 minutes
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30 minutes
Correct Answer
A. 30 minutesExplanation
Wrapped tubing needs to be sterilized at a higher temperature and for a longer duration compared to other sterilization methods to ensure complete elimination of microorganisms. Sterilizing it at 250°F for 30 minutes allows for sufficient heat penetration and exposure time to effectively kill any potential pathogens present on the tubing's surface or within its layers. This extended sterilization process helps maintain a sterile environment and prevents contamination during medical procedures or other applications where the tubing is used.Rate this question:
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- 17.
Funnel chest is also known as
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Pectus carinatum
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Pectus excavatum
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Atresia
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Ramstedt-Fredet
Correct Answer
A. Pectus excavatumExplanation
Funnel chest, also known as pectus excavatum, is a condition where the breastbone sinks into the chest, causing a noticeable indentation. This is the correct answer because the other options, pectus carinatum, atresia, and Ramstedt-Fredet, do not refer to funnel chest. Pectus carinatum is a condition where the breastbone protrudes outwards, atresia refers to a blockage or absence of a body opening or passage, and Ramstedt-Fredet is a surgical procedure used to treat pyloric stenosis.Rate this question:
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- 18.
Which term denotes low or decreased blood volume?
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Anoxia
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Hypovolemia
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Hypoxia
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Hypocapnia
Correct Answer
A. HypovolemiaExplanation
Hypovolemia is the correct answer because it refers to a decreased or low blood volume. Anoxia refers to a lack of oxygen, hypoxia refers to low oxygen levels in tissues, and hypocapnia refers to low carbon dioxide levels in the blood. However, only hypovolemia specifically relates to a decrease in blood volume.Rate this question:
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- 19.
Injection of contrast media into the brachial, carotid, or vertebral artery to study the intracranial vessels is called
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Myelography
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Pneumoencephalography
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Computed axial tomography (CAT) scan
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Angiography
Correct Answer
A. AngiographyExplanation
Angiography is the correct answer because it involves the injection of contrast media into arteries to visualize the blood vessels. This procedure is commonly used to study the intracranial vessels by injecting contrast media into the brachial, carotid, or vertebral artery. Myelography is a different procedure that involves the injection of contrast media into the spinal canal to study the spinal cord and nerves. Pneumoencephalography is an outdated procedure that involves the injection of air into the brain to visualize the ventricles. Computed axial tomography (CAT) scan is a non-invasive imaging technique that uses X-rays to create detailed cross-sectional images of the body.Rate this question:
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- 20.
Instruments and other items sterilized together in the flash autoclave require
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3 minutes at 270F
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53 minutes at 250F
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10 minutes at 270F
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30 minutes at 250F
Correct Answer
A. 10 minutes at 270FExplanation
Instruments and other items that are sterilized together in the flash autoclave require 10 minutes at 270F because this combination of time and temperature is necessary to effectively kill any microorganisms present on the items. The higher temperature of 270F helps to ensure that the sterilization process is thorough, while the shorter time of 10 minutes allows for a quicker turnaround and more efficient use of the autoclave.Rate this question:
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- 21.
Suture material that becomes encapsulated with fibrous tissue during the healing process is
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Nonabsorbable suture
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Absorbable suture
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Synthetic absorbable suture
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Gut suture
Correct Answer
A. Nonabsorbable sutureExplanation
Nonabsorbable sutures are made of materials that are not broken down by the body and therefore do not dissolve or absorb over time. Instead, they remain in the body indefinitely. During the healing process, nonabsorbable sutures become encapsulated with fibrous tissue, which helps to secure the wound and promote healing. This encapsulation prevents the suture from causing irritation or infection and provides long-term support to the wound.Rate this question:
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- 22.
A right hemicolectomy is performed to remove pathology of the
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Descending colon
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Ascending colon
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Sigmoid colon
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Mesocolon
Correct Answer
A. Ascending colonExplanation
A right hemicolectomy is a surgical procedure performed to remove pathology or disease in the ascending colon. The ascending colon is the part of the large intestine that connects the cecum (the first part of the colon) to the transverse colon. By removing the affected portion of the ascending colon, the surgeon aims to treat the underlying condition and improve the patient's health. This procedure is commonly used for conditions such as colorectal cancer, diverticulitis, and Crohn's disease that specifically affect the ascending colon.Rate this question:
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- 23.
Dacryo refers to
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Eyelid
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Eyeball
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Cornea
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Lacrimal gland
Correct Answer
A. Lacrimal glandExplanation
Dacryo refers to the lacrimal gland. The lacrimal gland is responsible for producing tears, which help to lubricate and protect the surface of the eye. Tears are important for maintaining proper eye health and preventing dryness and irritation. The lacrimal gland is located in the upper outer corner of the eye socket and secretes tears that are spread across the eye when we blink.Rate this question:
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- 24.
When transporting a patient, drainage systems should be placed
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At stretcher level
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Below stretcher level
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Above stretcher level
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Optionally
Correct Answer
A. Below stretcher levelExplanation
When transporting a patient, drainage systems should be placed below stretcher level. This is because gravity will help the drainage system to function properly and prevent any backflow of fluids. Placing the drainage system below stretcher level ensures that any fluids or waste will flow downwards and away from the patient, minimizing the risk of contamination or infection. Additionally, positioning the drainage system below stretcher level makes it easier to monitor and manage the system during transportation.Rate this question:
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- 25.
The maximum size of a linen pack must not exceed
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8x10x16 in
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10x14x18 in
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12x12x20 in
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14x16x36 in
Correct Answer
A. 12x12x20 inExplanation
The maximum size of a linen pack must not exceed 12x12x20 inches. This means that the length should not exceed 12 inches, the width should not exceed 12 inches, and the height should not exceed 20 inches. This size limit ensures that the linen pack can be easily stored and transported without taking up too much space.Rate this question:
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- 26.
Another name for a stay suture is a(n)
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Tension suture
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Retention suture
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Interrupted suture
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Buried suture
Correct Answer
A. Retention sutureExplanation
A stay suture is commonly known as a retention suture. This type of suture is used to hold tissues in place during a surgical procedure, providing support and preventing them from slipping or retracting. It is typically placed away from the primary incision site and is used to maintain tension on the tissue. The term "retention" refers to the purpose of the suture, which is to retain or keep the tissues in position. Therefore, the correct answer for another name for a stay suture is a retention suture.Rate this question:
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- 27.
Which two anatomic structures are ligated and divided to effect a cholecystectomy?
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Common hepatic duct, common bile duct
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Cystic duct, cystic artery
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Common bile duct, cystic artery
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Cystic duct, hepatic artery
Correct Answer
A. Cystic duct, cystic arteryExplanation
During a cholecystectomy, the surgeon ligates and divides the cystic duct and cystic artery. The cystic duct connects the gallbladder to the common bile duct, and the cystic artery supplies blood to the gallbladder. Ligating and dividing these structures is necessary to remove the gallbladder and ensure proper bile flow.Rate this question:
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- 28.
Adeno means
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Lymph
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Gland
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Joint
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Bone
Correct Answer
A. GlandExplanation
The term "adeno" is derived from the Greek word "aden" which means gland. Therefore, "adeno" refers to something related to glands.Rate this question:
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- 29.
When the patient is being transferred fromt he OR table after surgery, the action should be
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Swift but cautious in order to get the patient to the recovery room as quickly as possible
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Performed with comfort of the patient as the prime concern
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Gentle and rapid so that the paitent does not wake up
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Gentle and slow in order to prevent circulatory depression
Correct Answer
A. Gentle and slow in order to prevent circulatory depressionExplanation
When the patient is being transferred from the OR table after surgery, the action should be gentle and slow in order to prevent circulatory depression. This is because sudden movements or rough handling can cause a drop in blood pressure and circulation, which can be detrimental to the patient's recovery. By taking a gentle and slow approach, healthcare professionals can ensure the patient's safety and well-being during the transfer process.Rate this question:
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- 30.
In steam sterilization, the function of pressure is to
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Destroy microorganisms
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Increase the temperature of the steam
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Lower the exposure time
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Create condensation
Correct Answer
A. Increase the temperature of the steamExplanation
In steam sterilization, the function of pressure is to increase the temperature of the steam. When pressure is applied to steam, it raises the boiling point of water, allowing the steam to reach higher temperatures. This increased temperature is crucial for effective sterilization as it helps to kill microorganisms by denaturing their proteins and destroying their cellular structures. Therefore, pressure plays a vital role in ensuring that the steam reaches the required temperature for effective sterilization.Rate this question:
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- 31.
Which of the following suture materials is not generally used in the presence of infection?
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Silk
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Surgical gut
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Polypropylene
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Stainless steel
Correct Answer
A. SilkExplanation
Silk is not generally used in the presence of infection because it is a natural material that can harbor bacteria and promote infection. In contrast, surgical gut, polypropylene, and stainless steel are synthetic materials that are more resistant to bacterial colonization and are therefore preferred in infected wounds.Rate this question:
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- 32.
Radical surgery done for lower sigmoid or rectal malignancy is a(n)
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Wertheim's procedure
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Abdominal perineal resection
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Whipple procedure
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Pelvic exenteration
Correct Answer
A. Abdominal perineal resectionExplanation
Abdominal perineal resection is the correct answer because it is a surgical procedure used to remove the lower sigmoid or rectal malignancy. It involves removing the rectum, anus, and part of the sigmoid colon through an incision in the abdomen, followed by the creation of a permanent colostomy. This procedure is typically performed when the cancer is located in the lower part of the rectum or anus, and it allows for complete removal of the tumor while preserving the anal sphincter. The other options listed (Wertheim's procedure, Whipple procedure, and pelvic exenteration) are not specifically used for lower sigmoid or rectal malignancy.Rate this question:
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- 33.
The term for fluid or water in the ventricles of the brain is
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Hydrophobia
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Hydrocephalus
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Hydrocele
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Hydronephrosis
Correct Answer
A. HydrocephalusExplanation
Hydrocephalus is the correct answer because it refers to the accumulation of fluid or water in the ventricles of the brain. This condition can occur due to various reasons such as blockage of the cerebrospinal fluid flow or overproduction of cerebrospinal fluid. Hydrophobia is a term used to describe an irrational fear of water, while hydrocele refers to the accumulation of fluid in the scrotum. Hydronephrosis, on the other hand, is the swelling of the kidneys due to the buildup of urine.Rate this question:
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- 34.
The patient may be left on the transport stretcher unattended
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Under no circumstances
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If he or she is alert and responsible
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If her or she is sound asleep
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If he or she can be observed by passing personnel
Correct Answer
A. Under no circumstancesExplanation
Under no circumstances should the patient be left on the transport stretcher unattended. This means that regardless of the situation or condition of the patient, it is absolutely not acceptable to leave them alone on the stretcher. This is important for the safety and well-being of the patient, as they may require assistance or monitoring at any given time. It is crucial for healthcare professionals to ensure that someone is always present with the patient to provide necessary care and support.Rate this question:
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- 35.
212 F is equivalent to
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32 C
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98.6 C
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100 C
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175 C
Correct Answer
A. 100 C -
- 36.
An anti-inflammatory drug whose effect is useful in reversing early rejection of organ transplants is
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Cyclosporine
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Polyclonal
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Prednisone
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Orthoclone
Correct Answer
A. PrednisoneExplanation
Prednisone is an anti-inflammatory drug that is commonly used to treat various conditions, including organ transplant rejection. It works by suppressing the immune system, which helps to prevent the body from rejecting the transplanted organ. By reducing inflammation and suppressing the immune response, prednisone can effectively reverse early rejection of organ transplants. Cyclosporine is also commonly used for this purpose, but prednisone is a more widely used and well-known drug in the context of organ transplant rejection. Polyclonal and orthoclone are not typically used in this context and do not have the same anti-inflammatory effects as prednisone.Rate this question:
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- 37.
A congenital abnormality of the musculature between the stomach and the duodenum is called
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Esophageal atresia
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Pyloric stenosis
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Intestinal atresia
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Duodenal atresia
Correct Answer
A. Pyloric stenosisExplanation
Pyloric stenosis is a congenital abnormality that occurs when the muscles of the pylorus (the opening between the stomach and the duodenum) become thickened, leading to a narrowing or blockage. This condition typically presents in infants and is characterized by symptoms such as projectile vomiting, weight loss, and dehydration. Surgical intervention is often required to correct the abnormality. Esophageal atresia, intestinal atresia, and duodenal atresia are all different congenital abnormalities that affect different parts of the digestive system, but they do not involve the musculature between the stomach and the duodenum.Rate this question:
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- 38.
A fossa is a
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Ridge
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Basin-like depression
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Projection
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Seam
Correct Answer
A. Basin-like depressionExplanation
A fossa is a basin-like depression. This means that it is a low-lying area or hollow that resembles a basin in shape. A fossa is typically formed through geological processes such as erosion or tectonic activity. It is often found in areas where there has been a subsidence or sinking of the Earth's crust, creating a depressed area. The term "basin-like" is used to describe the shape of the fossa, emphasizing its concave or bowl-like appearance.Rate this question:
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- 39.
A procedure performed to treat myasthenia gravis is a(n)
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Adrenalectomy
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Splenectomy
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Thymectomy
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Parathyroidectomy
Correct Answer
A. ThymectomyExplanation
A thymectomy is a surgical procedure performed to treat myasthenia gravis. Myasthenia gravis is an autoimmune disorder that affects the muscles and is caused by the production of antibodies that attack the acetylcholine receptors in the muscles. The thymus gland, located in the chest, plays a role in the development of these antibodies. Removing the thymus gland through a thymectomy can help alleviate the symptoms of myasthenia gravis and improve muscle strength. Therefore, thymectomy is the correct answer for the given question.Rate this question:
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- 40.
The purpose of lidocaine installation during a tracheotomy is to
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Extend anesthesia
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Decrease coughing
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Decrease gag reflex
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Reduce edema
Correct Answer
A. Decrease coughingExplanation
Lidocaine is a local anesthetic that can be used to numb the area around the tracheotomy site. By decreasing the sensation in the throat and airway, lidocaine can help reduce coughing during the procedure. Coughing can be a reflex response to the irritation caused by the tracheotomy, and by decreasing coughing, lidocaine can make the procedure more comfortable for the patient and help prevent complications.Rate this question:
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- 41.
A procedure that is done to give the bowel a rest when there is advanced inflammation is
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Abdominoperineal resection (APR)
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Right hemicolecomty
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Anterior sigmoid resection
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Temporary colostomy
Correct Answer
A. Temporary colostomyExplanation
A temporary colostomy is a procedure that is done to give the bowel a rest when there is advanced inflammation. It involves creating an opening in the abdomen called a stoma, through which a portion of the colon is brought to the surface and attached to a bag. This allows waste to bypass the inflamed or diseased part of the bowel, giving it time to heal. Once the inflammation subsides, the colostomy can be reversed and normal bowel function can be restored.Rate this question:
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- 42.
A forceps used to grasp lung tissue is
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Crile
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Adson
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Duval
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Walton
Correct Answer
A. Duval -
- 43.
Heath-sensitive items that can be completely immersed can be processed via the _____ in 30 minutes.
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Ethylene oxide (ETO) sterilizer
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Endoflush
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Gravity displacement sterilizer
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STERIS
Correct Answer
A. STERISExplanation
The STERIS sterilizer can process heat-sensitive items that can be completely immersed in just 30 minutes.Rate this question:
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- 44.
The maximum recommended dosage of local anesthetic drug per hour is
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10 mL of 1% solution
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50 mL of 1% solution
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150 mL of 1% solution
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250 mL of 1% solution
Correct Answer
A. 50 mL of 1% solutionExplanation
The maximum recommended dosage of local anesthetic drug per hour is 50 mL of 1% solution. This dosage is considered safe and effective for providing anesthesia. Higher dosages may increase the risk of systemic toxicity and adverse reactions. Therefore, it is important to adhere to the recommended dosage to ensure patient safety during procedures requiring local anesthesia.Rate this question:
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- 45.
Ischemia can be defined as
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Excessive blood supply to a part
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Deficient blood supply to a part
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Abnormal condition of the hipbone
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Abnormal condition of the ischium and the anus
Correct Answer
A. Deficient blood supply to a partExplanation
Ischemia is a medical term that refers to a deficient blood supply to a specific part of the body. This condition occurs when there is a restriction or blockage in the blood vessels that supply oxygen and nutrients to the affected area. As a result, the tissue or organ may not receive enough blood flow, leading to potential damage or dysfunction.Rate this question:
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- 46.
The person transporting the patiet on a stretcher should
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Push the stretcher from the head
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Pull the stretcher by the foot
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Guide the stretcher from either side
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Guide the stretcher from any position that is comfortable
Correct Answer
A. Push the stretcher from the headExplanation
When transporting a patient on a stretcher, it is important to push the stretcher from the head. This is because pushing from the head allows the person transporting the patient to have better control and visibility of the patient's body and any potential obstacles in their path. It also ensures that the patient's head is properly supported and protected during the transportation process.Rate this question:
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- 47.
Activated gluteraldehyde
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Is corrosive to instruments
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Causes damage to lenses or the cement on lensed intruments
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Is absorbed by rubber and plastic
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Can be reused
Correct Answer
A. Can be reusedExplanation
Activated gluteraldehyde can be reused because it is a chemical disinfectant that can be replenished and reused multiple times before it loses its effectiveness. Unlike other disinfectants that may lose their potency after one use, activated gluteraldehyde can be used repeatedly without significant degradation. This makes it a cost-effective option for healthcare facilities and laboratories that require frequent disinfection of instruments and equipment.Rate this question:
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- 48.
A Weitlaner is a
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Dissector
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Grasper
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Forceps
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Retractor
Correct Answer
A. RetractorExplanation
A Weitlaner is a type of surgical instrument known as a retractor. Retractors are used to hold back tissues or organs during surgical procedures, allowing the surgeon to have better access to the area being operated on. Weitlaner retractors have self-retaining properties, meaning they can be locked in place once positioned, making them particularly useful in procedures where the surgeon requires both hands free.Rate this question:
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- 49.
Which part of the pancreas is the most common site of malignant tumors?
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Head
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Body
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Tail
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Splenic portion
Correct Answer
A. HeadExplanation
The head of the pancreas is the most common site of malignant tumors. This is because the head of the pancreas is located near the bile duct and the duodenum, which are areas where cancer can easily spread from. Additionally, the head of the pancreas contains a higher concentration of cells compared to other parts of the pancreas, making it more susceptible to tumor growth.Rate this question:
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