Phlebotomy Final Exam Quiz

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  • 1/101 Questions

    The single most important means of preventing the spread of infection are:

    • Hand washing before and after contact with each patient
    • Identifying the disease being isolated
    • Wearing gloves when drawing infection patient
    • Wearing a mask into an isolation room
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About This Quiz

Do you want to pursue a career in the field of Phlebotomy? If you are preparing for Phlebotomy exams, take this phlebotomy final exam practice test to test your knowledge about the subject. It is basically the art of taking out blood from the veins. So, it is a very crucial thing that must be done accurately. If you have See morepracticed enough that you can ace an exam, take this quiz. You can get a perfect score if you know everything about Phlebotomy. All the best!

Phlebotomy Final Exam Quiz - Quiz

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  • 2. 

    The needle should be inserted into the arm with the bevel facing.

    • Down

    • Make no difference

    • To either side

    • Up

    Correct Answer
    A. Up
    Explanation
    The correct answer is "Up". When inserting a needle into the arm, it is important to position the bevel facing up. This allows for easier and smoother insertion into the skin, minimizing discomfort for the patient. Additionally, inserting the needle with the bevel facing up ensures that the medication or fluids being administered flow properly through the needle and into the bloodstream.

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  • 3. 

    The antiseptic of choice for routine phlebotomy is:

    • Tincture of iodine

    • 70% isopropyl alcohol

    • 70% methyl alcohol

    • Povidone iodine

    Correct Answer
    A. 70% isopropyl alcohol
    Explanation
    70% isopropyl alcohol is the antiseptic of choice for routine phlebotomy because it is effective in killing a wide range of microorganisms, including bacteria and viruses. It is also less likely to cause skin irritation compared to other antiseptics. Isopropyl alcohol is commonly used in healthcare settings for disinfecting the skin before procedures, such as blood draws, to reduce the risk of infection.

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  • 4. 

    Which of the following represents the three primary types of blood vessels in the human body?

    • Veins, arteries, and alveoli

    • Capillaries, arteries, and alveoli

    • Veins, arteries, and capillaries

    • Arteries, bronchioles, and veins

    Correct Answer
    A. Veins, arteries, and capillaries
    Explanation
    These three types of blood vessels make up the circulatory system. Arteries carry oxygenated blood away from the heart, while veins return deoxygenated blood to the heart. Capillaries are tiny, thin-walled vessels where oxygen and nutrients are exchanged between the blood and body tissues.

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  • 5. 

    Misidentifying a patient specimen is the most critical error a phlebotomist can make.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Misidentifying a patient specimen is the most critical error a phlebotomist can make because it can lead to serious consequences. If a phlebotomist labels a specimen incorrectly, it can result in misdiagnosis, wrong treatment, or even harm to the patient. Proper identification of patient specimens is crucial to ensure accurate testing and appropriate medical care.

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  • 6. 

    The glucose tolerance test is used to help in the diagnosis of:

    • Blood gas

    • Diabetes

    • Hepatitis

    • Cancer

    Correct Answer
    A. Diabetes
    Explanation
    The glucose tolerance test is used to help diagnose diabetes. This test measures how well the body can process glucose, a type of sugar. It involves drinking a sugary solution and then having blood samples taken at regular intervals to measure blood sugar levels. If the body has difficulty processing glucose and blood sugar levels remain high, it may indicate diabetes. This test can help healthcare providers determine if a person has diabetes or is at risk of developing it.

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  • 7. 

    Which of the following is not needed for a routine phlebotomy procedure?

    • Gloves

    • Tourniquet

    • Alcohol

    • Iodine

    Correct Answer
    A. Iodine
    Explanation
    Iodine is not needed for a routine phlebotomy procedure because it is typically used as an antiseptic to clean the skin before the procedure. However, in a routine phlebotomy procedure, the skin is usually cleaned with alcohol, which is the correct answer. Gloves are necessary to maintain hygiene and prevent contamination, and a tourniquet is used to help locate and access the veins.

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  • 8. 

    Patient identification is an opportunity to correctly identify the patient and to put the patient at ease with the procedure.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Patient identification is indeed an opportunity to ensure the correct identification of the patient and to make them feel comfortable with the procedure. This process involves verifying the patient's identity using multiple identifiers such as their name, date of birth, and medical record number. By correctly identifying the patient, healthcare providers can prevent medical errors, ensure accurate documentation, and provide personalized care. Additionally, confirming the patient's identity can help alleviate any anxiety or concerns they may have, promoting a positive patient experience.

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  • 9. 

    The most critical step in phlebotomy is:

    • Cleansing the site

    • Patient identification

    • Proper needle length

    • Using the correct tube

    Correct Answer
    A. Patient identification
    Explanation
    Patient identification is the most critical step in phlebotomy because it ensures that the blood sample is correctly labeled with the patient's information. This is crucial for accurate diagnosis and treatment of the patient. Incorrectly identifying the patient can lead to serious medical errors and potential harm to the patient. Therefore, proper patient identification is essential to maintain patient safety and prevent any potential complications.

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  • 10. 

    The number one vein of choice for venipuncture in the antecubital fossa is:

    • Basilic

    • Cephalic

    • Median cubital

    • Brachial

    Correct Answer
    A. Median cubital
    Explanation
    The correct answer is Median cubital. The median cubital vein is the preferred vein for venipuncture in the antecubital fossa because it is usually large, straight, and easily accessible. It is located in the middle of the antecubital fossa and is less likely to be near nerves or arteries, reducing the risk of complications during venipuncture. The basilic vein is often avoided due to its proximity to the brachial artery and the median nerve. The cephalic vein is also an option, but it may not be as easily accessible as the median cubital vein in some individuals. The brachial vein is not typically used for venipuncture in the antecubital fossa.

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  • 11. 

    The lavender tube contains

    • Na citrate

    • EDTA

    • SPS

    • Lithium heparin

    Correct Answer
    A. EDTA
    Explanation
    The lavender tube contains EDTA. EDTA is an anticoagulant that is commonly used for blood collection. It works by binding to calcium ions, which prevents blood from clotting. The lavender tube is typically used for hematology tests, as it helps preserve the integrity of blood cell morphology and allows for accurate cell counts and differentiation.

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  • 12. 

    If a patient experiences syncope during a venipuncture, he has:

    • Fainted

    • Vomited

    • Laughed

    • Convulsed

    Correct Answer
    A. Fainted
    Explanation
    If a patient experiences syncope during a venipuncture, it means that they have fainted. Syncope refers to a temporary loss of consciousness caused by a temporary decrease in blood flow to the brain. This can occur due to various factors, such as anxiety or pain during a medical procedure like a venipuncture. Fainting is a common reaction in such situations, and it is important for healthcare professionals to be aware of this possibility and provide appropriate care and support to the patient.

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  • 13. 

    Which of the following is an accessory organ of the digestive system?

    • Heart

    • Lung

    • Liver

    • Ovary

    Correct Answer
    A. Liver
    Explanation
    The liver is an accessory organ of the digestive system. It plays a crucial role in the digestion and metabolism of nutrients. It produces bile, which helps in the breakdown and absorption of fats. The liver also detoxifies harmful substances and stores vitamins and minerals. Additionally, it produces blood-clotting proteins and regulates blood sugar levels. Therefore, the liver is an essential organ for proper digestion and overall health.

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  • 14. 

    Factors to consider in site selection prior to a venipuncture are:

    • Scars or burns

    • Edema

    • Mastectomy

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    The correct answer is "All of the above." This means that all of the factors mentioned in the options (scars or burns, edema, and mastectomy) should be considered when selecting a site for a venipuncture. These factors can affect the accessibility and condition of the veins, making it important to take them into account to ensure a successful and safe venipuncture procedure.

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  • 15. 

    A specimen may be rejected by the lab if:

    • The tube was not initialed.

    • The blood is hemolyzed.

    • The tube was not transported properly.

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    A specimen may be rejected by the lab if the tube was not initiated, meaning it was not properly labeled with the necessary information. Additionally, if the blood is hemolyzed, it means that the red blood cells have been ruptured, which can affect the accuracy of test results. Lastly, if the tube was not transported properly, it may have been exposed to conditions that could compromise the integrity of the sample. Therefore, all of these factors could lead to the rejection of the specimen by the lab.

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  • 16. 

    After drawing a blood specimen, it is acceptable to pour part of the sample into another tube only if they are the same colored tubes (ex: lavender tube into another lavender tube).

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Pouring part of a blood specimen into another tube is not acceptable, even if the tubes are the same color. This is because it can introduce contamination or alter the integrity of the sample. It is important to handle blood specimens carefully and follow proper protocols to ensure accurate test results.

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  • 17. 

    Physiology is;

    • The structure of the human body

    • The function of the human body

    • Homeostasis

    • Hemostasis

    Correct Answer
    A. The function of the human body
    Explanation
    Physiology is the study of the function of the human body. It focuses on how different systems and organs work together to maintain homeostasis, which is the body's ability to maintain a stable internal environment. By understanding the function of the human body, physiologists can identify and treat abnormalities or diseases that may disrupt normal bodily functions. Therefore, the statement "Physiology is the function of the human body" accurately describes the field of physiology.

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  • 18. 

    When labeling tubes, the following information must be placed on them except:

    • Patient's name

    • Date

    • Time of draw

    • Patient's diagnosis

    • Phlebotomist's initials

    Correct Answer
    A. Patient's diagnosis
    Explanation
    The patient's diagnosis is not required to be placed on the labeled tubes. The other information, such as the patient's name, date, time of draw, and phlebotomist's initials, are necessary for proper identification and tracking of the samples. The patient's diagnosis is typically recorded in the patient's medical records, but it is not directly relevant to the labeling of the tubes.

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  • 19. 

    Which additive does a red tube contain?

    • Na fluoride

    • Nothing

    • EDTA

    • Na heparin

    Correct Answer
    A. Nothing
    Explanation
    The correct answer is "Nothing" because a red tube does not contain any additive. In laboratory settings, different colored tubes are used for different types of blood tests, and a red tube is typically used for collecting blood samples without any additives. This allows for the collection of whole blood that can be used for various tests, such as blood cell counts or blood chemistry analysis.

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  • 20. 

    A light blue tube contains the additive:

    • Na citrate

    • Na heparin

    • SPS

    • EDTA

    Correct Answer
    A. Na citrate
    Explanation
    Na citrate is the correct answer because it is commonly used as an anticoagulant in blood collection tubes. It prevents the blood from clotting by binding to calcium ions, which are necessary for the clotting process. Na citrate is specifically used for coagulation tests, such as prothrombin time (PT) and activated partial thromboplastin time (aPTT), as it preserves the coagulation factors in the blood sample.

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  • 21. 

    Which of the following is the smallest needle?

    • 18 gauge

    • 19 gauge

    • 20 gauge

    • 21 gauge

    Correct Answer
    A. 21 gauge
    Explanation
    A needle's gauge refers to its diameter, with a higher gauge indicating a smaller diameter. Therefore, the smallest needle would have the highest gauge number. In this case, 21 gauge is the smallest needle among the options provided.

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  • 22. 

    What is the lifespan of a mature RBC?

    • 120 days

    • 100 days

    • 10 days

    • 15-20 days

    Correct Answer
    A. 120 days
    Explanation
    The lifespan of a mature RBC (red blood cell) is 120 days. This means that after being produced in the bone marrow, the RBC circulates in the bloodstream for approximately 4 months before being removed by the spleen and liver. This lifespan is important for maintaining a healthy balance of RBCs in the body and ensuring efficient oxygen transport.

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  • 23. 

    A gray tube contains the additive:

    • Na citrate

    • Na heparin

    • Clot activator

    • Na fluoride

    Correct Answer
    A. Na fluoride
    Explanation
    Na fluoride is commonly used as an additive in gray tubes for blood collection. It acts as a preservative and anticoagulant, preventing the blood from clotting by inhibiting the activity of enzymes involved in the clotting process. This allows for accurate measurement of glucose levels in the blood, as fluoride prevents glycolysis (breakdown of glucose) from occurring. Na fluoride is also used in combination with other additives, such as potassium oxalate, for the collection of blood samples for glucose testing.

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  • 24. 

    The most commonly occurring complication in phlebotomy is:

    • Convulsions

    • Short draw

    • Hypovolemia

    • Hematoma

    Correct Answer
    A. Hematoma
    Explanation
    Hematoma is the most commonly occurring complication in phlebotomy. A hematoma is a localized collection of blood outside the blood vessels, usually caused by puncturing a blood vessel during the phlebotomy procedure. It can result in pain, swelling, and discoloration at the site of the blood draw. Hematomas can vary in size and severity, and may require additional medical intervention such as pressure application or drainage.

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  • 25. 

    What is the first course of action to follow if a patient begins to have a seizure?

    • Remove the tourniquet and the needle.

    • Notify the physician

    • Call for help

    • Insert a tongue depressor into the patient mouth

    Correct Answer
    A. Remove the tourniquet and the needle.
    Explanation
    The correct answer is to remove the tourniquet and the needle. This is because during a seizure, it is important to ensure the safety of the patient and prevent any harm. Removing the tourniquet and the needle will eliminate any potential risks or injuries that may occur during the seizure. It is important to prioritize the immediate safety of the patient before notifying the physician or calling for help. Inserting a tongue depressor into the patient's mouth is not recommended as it can cause injury to the patient's teeth or airway.

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  • 26. 

    Another term used to describe a red blood cell is:

    • Leukocyte

    • Thrombocyte

    • Erythrocyte

    • Lymphocyte

    Correct Answer
    A. Erythrocyte
    Explanation
    Erythrocyte is another term used to describe a red blood cell. Erythrocytes are the most common type of blood cells and their main function is to transport oxygen from the lungs to the rest of the body. They contain a protein called hemoglobin, which binds to oxygen and gives the cells their red color. Erythrocytes are produced in the bone marrow and have a lifespan of about 120 days. They do not have a nucleus, allowing for more space to carry oxygen.

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  • 27. 

    Universal donors are blood types:

    • O

    • A

    • AB

    • B

    Correct Answer
    A. O
    Explanation
    The blood type O is considered a universal donor because it does not have any antigens on the surface of its red blood cells. This means that it can be safely transfused to individuals with any blood type (A, B, AB, or O) without causing an adverse immune reaction. On the other hand, individuals with blood types A, B, or AB have antigens on their red blood cells, making them incompatible with certain blood types. Therefore, O is the correct answer as it is the only blood type that can be universally donated.

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  • 28. 

    The name given to an infection that a patient acquired after admission to a healthcare facility is:

    • Communicable

    • Reportable

    • Nosocomial

    • Antibiotic-Resistant

    Correct Answer
    A. Nosocomial
    Explanation
    Nosocomial refers to an infection that a patient acquires after being admitted to a healthcare facility. This term is used to describe infections that are acquired within the healthcare setting, such as hospitals or nursing homes. These infections can be caused by a variety of factors, including the presence of bacteria, viruses, or fungi, as well as poor hygiene practices or inadequate infection control measures. Nosocomial infections are a significant concern in healthcare settings, as they can lead to increased morbidity and mortality rates, prolonged hospital stays, and increased healthcare costs.

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  • 29. 

    Which blood vessels carry blood that is high in oxygen?

    • Veins

    • Arteries

    • Venules

    • Vena Cava

    Correct Answer
    A. Arteries
    Explanation
    Arteries carry blood that is high in oxygen. Oxygenated blood is pumped out of the heart by the left ventricle and enters the arteries, which transport it to various parts of the body. Arteries have thick, elastic walls to withstand the pressure generated by the heart's pumping action. The oxygen-rich blood is then delivered to the body's tissues and organs through smaller arterioles and capillaries. Veins, on the other hand, carry blood that is low in oxygen and return it back to the heart. Venules are small veins that collect deoxygenated blood from capillaries. The vena cava is the largest vein in the body and carries deoxygenated blood from the body back to the heart.

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  • 30. 

    Anatomy is

    • The structure of the human body

    • The function of the human body

    • Homeostasis

    • None of the above

    Correct Answer
    A. The structure of the human body
    Explanation
    Anatomy is the study of the structure of the human body, including the arrangement and organization of its various parts. It involves examining the relationships between different body systems, organs, tissues, and cells. By studying anatomy, we can gain a better understanding of how the body is organized and how its different parts work together to maintain normal function. This knowledge is essential for healthcare professionals, as it helps in diagnosing and treating diseases and injuries.

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  • 31. 

    Aspirin may affect a patient's:

    • HCG

    • CBC

    • Bleeding time

    • Heparin time

    Correct Answer
    A. Bleeding time
    Explanation
    Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits the production of certain substances in the body that cause pain, inflammation, and fever. One of the effects of aspirin is its ability to inhibit platelet aggregation, which means it can prevent blood clot formation. This can lead to an increase in bleeding time, as it takes longer for the blood to clot. Therefore, aspirin can affect a patient's bleeding time.

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  • 32. 

    A light blue tube must be filled at least 90% full to ensure a quality specimen.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    To ensure a quality specimen, a light blue tube must be filled at least 90% full. This is because the tube contains specific additives and anticoagulants that are necessary for accurate testing. If the tube is not filled to the required level, there may not be enough of these substances present, leading to inaccurate results. Therefore, it is important to fill the tube at least 90% full to ensure the reliability and validity of the specimen.

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  • 33. 

    Which of the following should a phlebotomist not do when drawing blood from a child?

    • Use the patient identification process.

    • Explain the procedure

    • Tell the child that the procedure will not hurt.

    • During the draw, tell the child "just a few more seconds."

    Correct Answer
    A. Tell the child that the procedure will not hurt.
    Explanation
    A phlebotomist should not tell a child that the procedure will not hurt when drawing blood. This is because it may not be true and can lead to a loss of trust if the child experiences pain during the procedure. It is important for the phlebotomist to be honest and transparent with the child, explaining the procedure and reassuring them that they will do their best to minimize any discomfort.

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  • 34. 

    Which procedure is normally collected by a nurse or respiratory therapist?

    • Glucose Tolerance Test

    • Routine blood collection

    • Arterial Blood Gas

    • Capillary skin puncture

    Correct Answer
    A. Arterial Blood Gas
    Explanation
    Arterial Blood Gas (ABG) is a procedure that is typically performed by a nurse or respiratory therapist. It involves drawing blood from an artery to measure the levels of oxygen, carbon dioxide, and other gases in the blood. This test is commonly used to assess a patient's respiratory and metabolic status and to diagnose and monitor conditions such as respiratory failure, lung disease, and acid-base imbalances. Routine blood collection, glucose tolerance test, and capillary skin puncture are not typically performed by a nurse or respiratory therapist for the purpose of assessing respiratory and metabolic function.

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  • 35. 

    A green tube contains the additive:

    • ACD

    • Na fluoride

    • Thrombin

    • Na heparin

    Correct Answer
    A. Na heparin
    Explanation
    Na heparin is the correct answer because it is commonly used as an anticoagulant additive in green tubes. Heparin prevents blood from clotting by inhibiting the formation of fibrin, which is necessary for blood clotting. This makes it an essential additive for tests that require plasma or whole blood samples.

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  • 36. 

    In which organ is insulin produced?

    • Liver

    • Pancreas

    • Gallbladder

    • Kidney

    Correct Answer
    A. Pancreas
    Explanation
    Insulin is produced in the pancreas. The pancreas is a gland located in the abdomen that plays a crucial role in the digestive and endocrine systems. It produces and releases insulin, a hormone that helps regulate blood sugar levels by facilitating the uptake of glucose from the bloodstream into cells. Insulin is essential for maintaining normal blood sugar levels and is primarily produced in the beta cells of the pancreas.

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  • 37. 

    All blood samples should be handled using universal safety precautions.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Universal safety precautions refer to a set of guidelines and practices that are followed to prevent the transmission of infectious diseases. This includes handling blood samples in a safe and appropriate manner to minimize the risk of contamination and infection. Therefore, it is true that all blood samples should be handled using universal safety precautions.

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  • 38. 

    Sodium citrate is present in a lavender top tube.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Sodium citrate is not present in a lavender top tube. Lavender top tubes typically contain an anticoagulant called EDTA (ethylenediaminetetraacetic acid) which is used to prevent blood from clotting. Sodium citrate is commonly found in blue top tubes and is used as an anticoagulant for coagulation studies. Therefore, the statement is false.

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  • 39. 

    When a tourniquet is left on too tight, capillaries may rupture, causing.

    • Rash

    • Pain

    • Urticaria

    • Petechiae

    Correct Answer
    A. Petechiae
    Explanation
    When a tourniquet is left on too tight, it can restrict blood flow to the area beyond the tourniquet. This can lead to the rupture of capillaries, which are small blood vessels. When capillaries rupture, it can result in the formation of petechiae, which are small red or purple spots on the skin. Therefore, petechiae is the most likely outcome when a tourniquet is left on too tight.

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  • 40. 

    A conscious hospital patient does not have an armband. The name and number on the door agree with the requisition. What should the phlebotomist do?

    • Ask the patient for verbal verification of his name.

    • Do not draw the patient until an armband has been applied.

    • Draw the patient and take the specimen to the lab

    • Draw the patient and then ask the nurse to identify the patient

    Correct Answer
    A. Do not draw the patient until an armband has been applied.
    Explanation
    The phlebotomist should not draw the patient until an armband has been applied. This is important for patient identification and safety. The absence of an armband means there is a risk of misidentifying the patient, which can lead to serious consequences such as administering the wrong treatment or medication. Verbal verification from the patient alone is not sufficient, as it may not be reliable or accurate. Therefore, it is crucial to wait for the armband to ensure proper identification before proceeding with any procedures.

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  • 41. 

    A zone of comfort is an example of proxemics.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Proxemics is the study of how people perceive and use space in different social and cultural contexts. A zone of comfort refers to the personal space that individuals prefer to maintain around themselves. This concept is a part of proxemics as it explores the spatial relationships and boundaries that people establish to feel comfortable. Therefore, it is correct to say that a zone of comfort is an example of proxemics.

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  • 42. 

    Thrombophlebitis is:

    • A synonym for emboli

    • Blood clot in the heart

    • Inflammation of a vein with a clot

    • Inflammation of the thyroid gland

    Correct Answer
    A. Inflammation of a vein with a clot
    Explanation
    Thrombophlebitis refers to the inflammation of a vein with the formation of a blood clot. It is not a synonym for emboli, which are blood clots that have traveled to another part of the body. Thrombophlebitis specifically refers to the inflammation and clot formation within a vein. It is not related to the heart or the thyroid gland.

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  • 43. 

    Which of the following would require the phlebotomist to use a HEPA respirator or N95 mask?

    • TB

    • Aids

    • HBV

    • Encephalitis

    Correct Answer
    A. TB
    Explanation
    A phlebotomist would need to use a HEPA respirator or N95 mask when dealing with tuberculosis (TB) because it is an airborne disease that can be transmitted through respiratory droplets. The use of a respirator or mask helps to protect the phlebotomist from inhaling the infectious particles and reduces the risk of contracting TB.

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  • 44. 

    The smallest blood vessel in the body where gas exchange takes place is a (an)

    • Capillary

    • Venule

    • Arteriole

    • Vein

    Correct Answer
    A. Capillary
    Explanation
    Capillaries are the smallest blood vessels in the body where gas exchange takes place. They have thin walls that allow for the exchange of oxygen and carbon dioxide between the blood and tissues. Capillaries connect arterioles and venules, and their small size and large surface area allow for efficient diffusion of gasses, nutrients, and waste products.

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  • 45. 

    The aorta is:

    • The major vein

    • The major artery

    • A peripheral artery

    • A systemic vein

    Correct Answer
    A. The major artery
    Explanation
    The aorta is the largest artery in the body and carries oxygenated blood from the heart to the rest of the body. It originates from the left ventricle of the heart and branches out to supply blood to all organs and tissues. It is responsible for delivering oxygen and nutrients to the body's cells and removing waste products.

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  • 46. 

    Which of the following is an example of proxemics?

    • Eye contact

    • Facial expression

    • Personal hygiene

    • Zone of comfort

    Correct Answer
    A. Zone of comfort
    Explanation
    Proxemics refers to the study of personal space and how individuals use and perceive space in social interactions. Zone of comfort is a concept within proxemics that refers to the distance at which individuals feel comfortable interacting with others. It is the physical distance that people maintain between themselves and others based on their cultural norms, personal preferences, and the nature of the relationship. Therefore, the zone of comfort is an example of proxemics as it relates to the physical distance maintained in social interactions.

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  • 47. 

    The process by which the body maintains a state of equilibrium is:

    • Homeostasis

    • Anabolism

    • Hemostasis

    • Metabolism

    Correct Answer
    A. Homeostasis
    Explanation
    Homeostasis refers to the body's ability to maintain a stable internal environment despite external changes. It involves various physiological processes that work together to regulate temperature, pH levels, blood pressure, and other vital parameters within a narrow range. This balance is crucial for the proper functioning of cells, tissues, and organs. Anabolism refers to the process of building up complex molecules, hemostasis refers to the control of bleeding, and metabolism refers to all the chemical reactions that occur in the body. However, only homeostasis specifically relates to the body's ability to maintain equilibrium.

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  • 48. 

    The primary function of a red blood cell is:

    • Fight infections

    • Carry iron

    • Carry iodine

    • Carry hemoglobin

    Correct Answer
    A. Carry hemoglobin
    Explanation
    Red blood cells are responsible for carrying oxygen from the lungs to the rest of the body and delivering carbon dioxide from the body's tissues back to the lungs. Hemoglobin, a protein found in red blood cells, binds to oxygen in the lungs and releases it in the tissues. This process allows for efficient oxygen transport and ensures that all cells in the body receive the oxygen they need to function properly. Therefore, the primary function of a red blood cell is to carry hemoglobin.

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  • 49. 

    Tubes containing additives should be inverted.

    • 3-4 times

    • 4-5 times

    • 5-10 times

    • Not be inverted

    Correct Answer
    A. 5-10 times
    Explanation
    Tubes containing additives should be inverted 5-10 times to ensure proper mixing of the additives with the sample. This helps in achieving accurate and consistent results. Inverting the tubes multiple times helps to evenly distribute the additives throughout the sample, preventing any potential errors or inconsistencies in the analysis.

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Quiz Review Timeline (Updated): Jan 15, 2025 +

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  • Current Version
  • Jan 15, 2025
    Quiz Edited by
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  • Aug 27, 2011
    Quiz Created by
    Wkhuu1

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