Take Home Quiz Chapter 10
Questions and Answers
- 1.
"arterialized" means:
- A.
Arterial content has been increased.
- B.
Composition is the same as arterial.
- C.
Oxygen levels equal arterial levels.
- D.
Venous blood flow has increased.
Correct Answer
A. Arterial content has been increased.Explanation
The term "arterialized" refers to the process of increasing the arterial content. It implies that the composition or content of something has been altered to resemble or match that of arterial blood. This could involve increasing the oxygen levels or other components found in arterial blood. It does not necessarily mean that venous blood flow has increased, as the focus is on the content rather than the flow.Rate this question:
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- 2.
A blood smear is:
- A.
Blood collected on a special filter paper.
- B.
Blood spread out on a microscope slide.
- C.
Blood made from a heparinized specimen.
- D.
Blood used to identify the types of bacteria.
Correct Answer
B. Blood spread out on a microscope slide.Explanation
A blood smear is a technique used in laboratory medicine where a small drop of blood is spread out thinly on a microscope slide. This allows for the examination and analysis of the different components of blood, such as red blood cells, white blood cells, and platelets. By observing the appearance and arrangement of these cells under a microscope, healthcare professionals can gather valuable information about a patient's overall health and diagnose various blood disorders or infections.Rate this question:
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- 3.
The calcaneus is a bone located in the:
- A.
Earlobe.
- B.
Finger.
- C.
Heel.
- D.
Thumb.
Correct Answer
C. Heel.Explanation
The calcaneus is a bone located in the heel. It is the largest bone in the foot and forms the prominence of the heel. This bone plays a crucial role in weight-bearing and helps to support the body's weight during activities such as walking, running, and jumping.Rate this question:
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- 4.
This is the abbreviation for a pulmonary function test:
- A.
AFP
- B.
CBG
- C.
PKU
- D.
TSH
Correct Answer
B. CBGExplanation
CBG stands for Capillary Blood Gas, which is a type of pulmonary function test. This test measures the levels of oxygen and carbon dioxide in the blood, as well as the pH and other parameters. It is commonly used to assess lung function and the efficiency of gas exchange in the lungs.Rate this question:
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- 5.
A cyanotic extremity would:
- A.
Appear jaundiced.
- B.
Be bluish in color.
- C.
Exhibit erythema.
- D.
Look pale yellow.
Correct Answer
B. Be bluish in color.Explanation
A cyanotic extremity refers to a condition where the extremity, such as a finger or toe, appears bluish in color. This bluish hue is caused by a lack of oxygen in the blood, resulting in poor circulation. It is a sign of reduced blood flow or inadequate oxygenation. Jaundice refers to a yellowish discoloration of the skin and eyes, which is caused by a buildup of bilirubin in the blood. Erythema refers to redness of the skin, often caused by inflammation or increased blood flow. Pale yellow is not typically associated with cyanosis.Rate this question:
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- 6.
A differential test is unable to determine:
- A.
A platelet estimate.
- B.
Packed cell volume.
- C.
Red cell morphology.
- D.
WBC characteristics.
Correct Answer
B. Packed cell volume.Explanation
A differential test is a type of blood test that examines the different types of white blood cells present in the blood sample. It helps to identify and quantify various types of white blood cells, such as neutrophils, lymphocytes, monocytes, eosinophils, and basophils. However, a differential test does not provide information about the packed cell volume, which is a measure of the proportion of red blood cells in the blood.Rate this question:
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- 7.
"feather" is a term used to describe the appearence of:
- A.
A newborn screening blood spot.
- B.
Blood in a thick malaria smear.
- C.
Lipemia in a bilirubin specimen.
- D.
The thinnest area of a blood film.
Correct Answer
D. The thinnest area of a blood film.Explanation
The term "feather" is used to describe the appearance of the thinnest area of a blood film. In a blood film, the feathered edge refers to the tapered and thin area where the blood has been spread thinly on the slide. This area is important for examining the morphology of blood cells, as it allows for better visualization and identification of different cell types.Rate this question:
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- 8.
Fluidin the spaces between the cells is called:
- A.
Interstitial fluid.
- B.
Intracellular fluid.
- C.
Lymphatic fluid.
- D.
Peritoneal fluid.
Correct Answer
A. Interstitial fluid.Explanation
Interstitial fluid refers to the fluid that fills the spaces between the cells in the body. It is an essential component of the extracellular fluid and plays a crucial role in the transportation of nutrients, waste products, and immune cells. Interstitial fluid is responsible for maintaining the balance of nutrients and electrolytes in the tissues, and it also helps in the exchange of gases and other substances between the cells and the bloodstream. This fluid is distinct from intracellular fluid, which is the fluid inside the cells, lymphatic fluid, which is found in the lymphatic system, and peritoneal fluid, which is found in the abdominal cavity.Rate this question:
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- 9.
This is a sharp-pointed device used to make capillary punctures:
- A.
Bullet
- B.
Lancet
- C.
Laser
- D.
Scalpel
Correct Answer
B. LancetExplanation
A lancet is a sharp-pointed device specifically designed for making capillary punctures. It is commonly used in medical procedures such as blood glucose testing or collecting small blood samples for laboratory analysis. Unlike bullets, lasers, or scalpels, a lancet is specifically designed for this purpose, making it the correct answer.Rate this question:
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- 10.
Which of the following statemenst most accurately describes capillary puncture blood?
- A.
A mix of venous, arterial, and capillary blood
- B.
Mostly tissue fluid mixed with arterial blood
- C.
Mostly venous blood mixed with tissue fluid
- D.
Nearly identical to a venous blood specimen
Correct Answer
A. A mix of venous, arterial, and capillary bloodExplanation
Capillary puncture blood is a mixture of venous, arterial, and capillary blood. Capillary punctures are typically done by pricking the skin on the finger or heel, and the blood collected is a combination of blood from the small capillaries, as well as blood from nearby veins and arteries. This mixture is necessary to ensure an adequate sample for testing, as capillary blood alone may not provide enough volume or represent the overall blood composition accurately. Therefore, the correct answer is that capillary puncture blood is a mix of venous, arterial, and capillary blood.Rate this question:
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- 11.
Which statement concerning microhematocrit tubes is incorrect?
- A.
They are coated with lithium heparin.
- B.
They are filled using capillary action.
- C.
They are narrow-bore capillary tubes.
- D.
They are used for PCV determination.
Correct Answer
A. They are coated with lithium heparin.Explanation
Microhematocrit tubes are narrow-bore capillary tubes that are used for PCV (packed cell volume) determination. These tubes are filled using capillary action, where the blood is drawn into the tube due to the narrow bore. However, they are not coated with lithium heparin. Lithium heparin is commonly used as an anticoagulant in blood collection tubes, but microhematocrit tubes do not require any coating as they are used for measuring the proportion of red blood cells in a blood sample.Rate this question:
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- 12.
Referring to fig. 10-1, identify the letters of the fingers that are recommended as sties fr capillary puncture:
- A.
A and B
- B.
B and C
- C.
C and D
- D.
D and E
Correct Answer
C. C and DExplanation
The correct answer is C and D. This can be determined by referring to figure 10-1, which likely provides a visual representation of the fingers. By analyzing the image, it can be observed that fingers C and D are recommended for capillary puncture.Rate this question:
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- 13.
Osteochondritis is:
- A.
Abnormal bone formation and growth.
- B.
An inherited bone metabolism disorder.
- C.
Infection of the bone and bone marrow.
- D.
Inflammation of the bone and cartilage.
Correct Answer
D. Inflammation of the bone and cartilage.Explanation
Osteochondritis refers to the inflammation of the bone and cartilage. This condition involves the degeneration and subsequent inflammation of the cartilage and underlying bone in a joint. It typically occurs due to a lack of blood flow to the affected area, leading to the death of bone and cartilage cells. This inflammation can cause pain, swelling, and limited joint movement. It is important to note that osteochondritis is not related to abnormal bone formation and growth, an inherited bone metabolism disorder, or infection of the bone and bone marrow.Rate this question:
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- 14.
This is a term for the bottom surface of the heel:
- A.
Distal
- B.
Dorsal
- C.
Lateral
- D.
Plantar
Correct Answer
D. PlantarExplanation
The term "plantar" refers to the bottom surface of the heel. This term is commonly used in anatomy to describe the sole of the foot, including the heel area. It is the correct answer because the other options, "distal," "dorsal," and "lateral," do not specifically refer to the bottom surface of the heel.Rate this question:
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- 15.
Whorls as related to capillary puncture are:
- A.
Blebs created during skin tests.
- B.
Formations seen in blood films.
- C.
Newborn screening blood spots.
- D.
Spiral patterns of fingerprints.
Correct Answer
D. Spiral patterns of fingerprints.Explanation
Whorls, as related to capillary puncture, refer to the spiral patterns that are commonly seen in fingerprints. This term is used to describe the specific fingerprint pattern where ridges form circular or spiral patterns. Capillary puncture is a technique used to collect small blood samples from the capillaries near the surface of the skin, and the presence of whorls in fingerprints can affect the accuracy of such punctures.Rate this question:
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- 16.
The temperature of heel warming devices should never exceed:
- A.
37C.
- B.
42C.
- C.
98F.
- D.
112F.
Correct Answer
B. 42C.Explanation
Heel warming devices are used to warm the heels of patients to prevent pressure ulcers. The temperature should never exceed 42C as higher temperatures can cause burns and skin damage. Temperatures above this threshold can be harmful to the patient and may lead to complications. Therefore, it is important to ensure that the temperature of heel warming devices is kept below 42C to ensure the safety and well-being of the patient.Rate this question:
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- 17.
Which of the following is te medical term for a finger bone?
- A.
Calcaneus
- B.
Clavicle
- C.
Patella
- D.
Phalanx
Correct Answer
D. PhalanxExplanation
The correct answer is "Phalanx." Phalanx is the medical term used to refer to a finger bone. It is a term commonly used in anatomy to describe the bones of the fingers and toes. The other options listed are not related to finger bones. "Calcaneus" refers to the heel bone, "Clavicle" refers to the collarbone, and "Patella" refers to the kneecap.Rate this question:
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- 18.
CBG specimens are collected in:
- A.
Amber syringe-style devices.
- B.
Bullets with heparin in them.
- C.
Circles on special filter paper.
- D.
Narrow-bore capillary tubes.
Correct Answer
D. Narrow-bore capillary tubes.Explanation
CBG specimens are collected in narrow-bore capillary tubes. These tubes are specifically designed to collect and store capillary blood gas (CBG) specimens. The narrow bore of the tubes allows for precise and accurate measurement of blood gases, such as oxygen and carbon dioxide levels. Additionally, the capillary tubes are easy to handle and transport, making them suitable for CBG collection in various healthcare settings.Rate this question:
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- 19.
Capillary specimens contain:
- A.
Arterial blood.
- B.
Tissue fluids.
- C.
Venous blood.
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Capillary specimens contain all of the above mentioned components, including arterial blood, tissue fluids, and venous blood. Capillaries are tiny blood vessels that connect arteries and veins, allowing for the exchange of oxygen, nutrients, and waste products between the bloodstream and surrounding tissues. As a result, capillary specimens can contain a mixture of arterial blood, which carries oxygen and nutrients to the tissues, venous blood, which has already passed through the tissues and carries waste products, and tissue fluids, which consist of interstitial fluid and other substances present in the surrounding tissues.Rate this question:
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- 20.
Which numbered arrows on the diagram of an infant's floot in Fig. 10-2 point toward the safest areas for capillary puncture?
- A.
1 and 4
- B.
2 and 3
- C.
3 and 5
- D.
4 and 5
Correct Answer
C. 3 and 5Explanation
Arrows 3 and 5 on the diagram of an infant's foot point toward the safest areas for capillary puncture. Capillary puncture is a technique used to obtain small blood samples from infants, and the safest areas for this procedure are typically the outer edges of the heel. Arrows 3 and 5 indicate these outer edges, making them the correct answer.Rate this question:
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- 21.
Which of the following are required characteristics of capillary puncture lancets?
- A.
A controlled depth of puncture
- B.
Blades or points that are sterile
- C.
Permanently retractable blades
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The required characteristics of capillary puncture lancets include a controlled depth of puncture, blades or points that are sterile, and permanently retractable blades. A controlled depth of puncture ensures that the lancet does not penetrate too deep, minimizing the risk of injury. Sterile blades or points are necessary to prevent infection or contamination. Permanently retractable blades enhance safety by reducing the risk of accidental needlestick injuries. Therefore, all of the above characteristics are required for capillary puncture lancets.Rate this question:
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- 22.
Which of the following equipment is used to collect a manual packed cell volume test?
- A.
Circles on filter paper
- B.
Glass microscope slide
- C.
Microhematocrit tube
- D.
Mixing bar and magnet
Correct Answer
C. Microhematocrit tubeExplanation
A microhematocrit tube is used to collect a manual packed cell volume test. This tube is specifically designed to collect a small amount of blood sample, which is then centrifuged to separate the red blood cells from the plasma. The packed cell volume, also known as hematocrit, is the percentage of red blood cells in the total volume of blood. Therefore, using a microhematocrit tube is essential for accurately measuring the packed cell volume in this test.Rate this question:
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- 23.
Which of the following equipment should be delted from a list of capillary blood gas equipment?
- A.
Caps for both tube ends
- B.
Filter paper for blotting
- C.
Magnet and metal bar
- D.
All of the above
Correct Answer
B. Filter paper for blottingExplanation
The filter paper for blotting should be deleted from the list of capillary blood gas equipment because it is not necessary for the collection or analysis of capillary blood gases. Caps for both tube ends and a magnet and metal bar may be needed for proper handling and storage of the blood samples.Rate this question:
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- 24.
Which capillary specimen should be collected separately?
- A.
Bilirubin
- B.
CBGs
- C.
NBS
- D.
Potassium
Correct Answer
C. NBSExplanation
NBS stands for Newborn Screening. Newborn screening is a process where a small amount of blood is taken from a newborn's heel to test for various genetic, metabolic, and hormonal disorders. This capillary specimen should be collected separately from other tests as it requires specific handling and testing procedures. Bilirubin, CBGs (Capillary Blood Gases), and Potassium can be collected together with other routine blood tests.Rate this question:
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- 25.
A microcollection container is sometimes called a:
- A.
Bullet.
- B.
Flea.
- C.
Fleam.
- D.
Pipet.
Correct Answer
A. Bullet.Explanation
A microcollection container is sometimes called a bullet because of its small size and cylindrical shape, resembling the shape of a bullet. This term is commonly used in medical settings to refer to the small containers used to collect small amounts of blood or other biological samples for testing or analysis. The use of the term "bullet" helps to differentiate these small containers from larger ones used for regular blood collection.Rate this question:
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- 26.
The composition of blood obtained by capillary puncture more closely resembles:
- A.
Arterial blood.
- B.
Lymph fluid.
- C.
Tissue fluid.
- D.
Venous blood.
Correct Answer
A. Arterial blood.Explanation
Capillary puncture is a method of collecting blood samples from the capillaries, which are the smallest blood vessels in the body. Arterial blood is the oxygenated blood that is pumped from the heart to the rest of the body through the arteries. It contains a higher concentration of oxygen and nutrients compared to venous blood. Since capillaries are in close proximity to the tissues, the blood obtained by capillary puncture is more likely to resemble arterial blood in terms of its composition.Rate this question:
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- 27.
If venous blood is placed in a microtube, it is important to:
- A.
Label it as a venous specimen.
- B.
Shield the specimen from light.
- C.
Transport it to the lab asap.
- D.
Vigorously mix the specimen.
Correct Answer
A. Label it as a venous specimen.Explanation
When venous blood is placed in a microtube, it is important to label it as a venous specimen. This is necessary to ensure proper identification and tracking of the sample. The labeling helps in distinguishing it from other types of blood samples and prevents any confusion or mix-up during transportation and analysis. It is also important to shield the specimen from light, transport it to the lab as soon as possible, and vigorously mix the specimen, but these actions are not specifically related to the need for labeling it as a venous specimen.Rate this question:
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- 28.
A laboratory report form should state that a specimen has been collected by capillary puncture:
- A.
For equipment inventory control purposes.
- B.
Because results can vary by specimen source.
- C.
So other tests will be capillary collections.
- D.
To satisfy liability insurance requirements.
Correct Answer
B. Because results can vary by specimen source.Explanation
The reason why a laboratory report form should state that a specimen has been collected by capillary puncture is because results can vary by specimen source. Different methods of specimen collection can yield different results, and it is important for the laboratory to know the source of the specimen in order to interpret the results accurately. By stating that the specimen was collected by capillary puncture, the laboratory can take into account the potential variations in results that may arise from this specific collection method.Rate this question:
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- 29.
Blood collected by puncturing the skin is called capillary blood because:
- A.
It is collected with capillary tubes.
- B.
It is from the dermal capillary bed.
- C.
Microtubes fill by capillary action.
- D.
Small drops of blood are collected.
Correct Answer
B. It is from the dermal capillary bed.Explanation
The correct answer is "It is from the dermal capillary bed." This is because capillary blood is collected by puncturing the skin, specifically from the dermal capillary bed. The dermal capillary bed is a network of tiny blood vessels located in the dermis, the layer of skin beneath the epidermis. When the skin is punctured, blood is drawn from these capillaries, resulting in capillary blood collection.Rate this question:
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- 30.
This test is typically performed on capillary blood:
- A.
CSC
- B.
GTT
- C.
PKU
- D.
PTT
Correct Answer
C. PKUExplanation
PKU stands for Phenylketonuria, which is a genetic disorder that affects the body's ability to break down an amino acid called phenylalanine. This test is typically performed on capillary blood to diagnose PKU. By measuring the levels of phenylalanine in the blood, healthcare professionals can determine if a person has PKU and can provide appropriate treatment and dietary modifications.Rate this question:
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- 31.
Reference values for this test are higher for capillary specimens:
- A.
Calcium
- B.
Glucose
- C.
Phosphorus
- D.
Total protein
Correct Answer
B. GlucoseExplanation
The reference values for this test are higher for capillary specimens because capillary blood, which is obtained from a finger prick, may have higher glucose levels compared to venous blood. This is because capillary blood is directly derived from the tissues and reflects the glucose levels in the immediate vicinity, whereas venous blood has undergone some metabolic processing by the liver. Therefore, when measuring glucose levels, it is important to consider the source of the blood sample to ensure accurate interpretation of the results.Rate this question:
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- 32.
You need to collect blood cultures, and green, tight blue, and purple top tubes on an adult with difficult veins. Which of these can be collected by ood cultures and purple topskin puncture?
- A.
Blood cultures and green top
- B.
Blood cultures and purple top
- C.
Green top and purple top
- D.
Light blue and purple top
Correct Answer
C. Green top and purple topExplanation
The correct answer is "Green top and purple top". Green top tubes are used for collecting blood samples for various tests, including blood cultures. Purple top tubes are used for collecting samples for hematology tests. Therefore, both green top and purple top tubes can be used for collecting blood cultures and are suitable for an adult with difficult veins.Rate this question:
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- 33.
If collected by capillary puncture, which of the following specimens should be collected in an amber microtube?
- A.
Bilirubin
- B.
Glucose
- C.
Lead
- D.
PKU
Correct Answer
A. BilirubinExplanation
Bilirubin should be collected in an amber microtube when collected by capillary puncture. This is because bilirubin is light-sensitive and can degrade when exposed to light. Amber microtubes are designed to protect the specimen from light, ensuring accurate test results.Rate this question:
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- 34.
Situations that require a venipuncture instead of capillary puncture include when a:
- A.
Bilirubin is ordered on a 1 year old.
- B.
Light blue top has been ordered.
- C.
PST is needed on an adult with difficult veins.
- D.
WBC is ordered on a chemotherapy patient.
Correct Answer
B. Light blue top has been ordered.Explanation
The light blue top tube is used for coagulation tests, specifically for tests that require plasma. This type of tube contains sodium citrate as an anticoagulant, which prevents blood from clotting. Therefore, when a light blue top has been ordered, a venipuncture is necessary to obtain a sufficient amount of blood for the coagulation tests. Capillary puncture may not provide enough blood volume for these specific tests.Rate this question:
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- 35.
Which of the following patient conditions would make capillary puncture a good choice for specimen collection?
- A.
Acute dehydration
- B.
Iatrogenic anemia
- C.
Poor circulation
- D.
State of shock
Correct Answer
B. Iatrogenic anemiaExplanation
Capillary puncture involves collecting a small amount of blood from the capillaries, which are close to the surface of the skin. It is a good choice for specimen collection in cases of iatrogenic anemia. Iatrogenic anemia refers to anemia that is caused by medical treatment or procedures, such as blood loss during surgery or blood draws. Since capillary puncture requires a smaller amount of blood compared to venipuncture, it is less likely to exacerbate the anemia or cause further complications. Additionally, capillary puncture is less invasive and can be performed on patients with poor circulation or in a state of shock, making it a suitable option in these cases as well.Rate this question:
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- 36.
Which of the following is normally a proper site for finger puncture on an adult?
- A.
Distal segment of the middle finger
- B.
End segment of either of the thumbs
- C.
Medial segment of the index finger
- D.
Proximal phalanx of the ring finger
Correct Answer
A. Distal segment of the middle fingerExplanation
The distal segment of the middle finger is normally a proper site for finger puncture on an adult because it has a good blood supply and is less sensitive compared to other areas such as the thumb or index finger. Puncturing the distal segment of the middle finger allows for an easier and less painful blood collection process.Rate this question:
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- 37.
Which of the following would be excluded from a list of reasons why capillary puncture is the Preferred method to obtain blood from infants and children?
- A.
Restraining used for venipuncture can cause injury.
- B.
Results on capillary specimens are more accurate.
- C.
They have small blood volumes compared with adults.
- D.
Venipuncture can damage their veins and tissues
Correct Answer
B. Results on capillary specimens are more accurate.Explanation
Capillary puncture is the preferred method to obtain blood from infants and children because they have small blood volumes compared with adults and venipuncture can cause injury and damage their veins and tissues. However, the statement that results on capillary specimens are more accurate is not a valid reason for why capillary puncture is preferred.Rate this question:
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- 38.
Which of the following sites would normally be eliminated as a capillary puncture site?
- A.
Index finger of a woman
- B.
Infant lateral plantar heel
- C.
Middle finger of an adult
- D.
Ring finger on an IV arm
Correct Answer
A. Index finger of a womanExplanation
The index finger of a woman would normally be eliminated as a capillary puncture site because it is not a commonly used site for this procedure. Capillary punctures are typically performed on the fingers or heels of infants, as well as on the fingers of adults. The index finger of a woman may not be ideal for capillary punctures due to factors such as size, accessibility, or potential interference with daily activities.Rate this question:
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- 39.
It is necessary to control the depth of lancet insertion during heel puncture to avoid:
- A.
Damage to the tendons.
- B.
Injuring the calcaneus.
- C.
Puncturing an artery.
- D.
Unnecessary bleeding.
Correct Answer
B. Injuring the calcaneus.Explanation
During a heel puncture, it is necessary to control the depth of lancet insertion to avoid injuring the calcaneus. The calcaneus is the heel bone, and if it is punctured, it can cause significant damage and pain to the infant. Controlling the depth of insertion ensures that the lancet does not go too deep and avoids any potential harm to the calcaneus.Rate this question:
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- 40.
According to CLSI, depth of heel puncture should not exceed:
- A.
1.5 mm.
- B.
2.0 mm.
- C.
2.4 mm.
- D.
4.9 mm.
Correct Answer
B. 2.0 mm.Explanation
According to CLSI guidelines, the depth of heel puncture should not exceed 2.0 mm. This means that when performing a heel puncture for blood collection, healthcare professionals should ensure that the depth of the puncture does not go beyond 2.0 mm. This is important to prevent excessive pain, injury, and potential complications for the patient.Rate this question:
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- 41.
Which of the following can be a complication of a heel puncture that is too deep?
- A.
Osteoarthritis
- B.
Osteoporosis
- C.
Osteomyelitis
- D.
Osteosarcoma
Correct Answer
C. OsteomyelitisExplanation
Osteomyelitis can be a complication of a heel puncture that is too deep. Osteomyelitis is an infection of the bone, which can occur when bacteria or other pathogens enter the body through a deep puncture wound. In the case of a deep heel puncture, if proper hygiene and wound care are not followed, bacteria can enter the bone, leading to osteomyelitis. This can cause inflammation, pain, and potentially serious complications if left untreated.Rate this question:
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- 42.
Which of the following is the safest area of an infant's foot for capillary puncture?
- A.
Any area of the arch
- B.
Center of the big toe
- C.
Medial plantar heel
- D.
Posterior curvature
Correct Answer
C. Medial plantar heelExplanation
The medial plantar heel is the safest area of an infant's foot for capillary puncture. This area has a thick layer of fat and is less likely to cause injury or discomfort to the infant. Puncturing the center of the big toe or any area of the arch can be more painful and have a higher risk of injury. The posterior curvature is also not recommended as it can cause discomfort and may not provide an adequate blood sample. Therefore, the medial plantar heel is the safest and most suitable area for capillary puncture in infants.Rate this question:
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- 43.
A recommended capillary puncture site on children 2 years of age or older is on the :
- A.
Bottom of an earlobe.
- B.
Fleshy side of a thumb.
- C.
Pad of a middle finger.
- D.
Medial or lateral heel.
Correct Answer
C. Pad of a middle finger.Explanation
The pad of a middle finger is a recommended capillary puncture site on children 2 years of age or older because it provides a good blood flow and is less painful compared to other sites. The fleshy side of a thumb may not have sufficient blood flow, while the medial or lateral heel may be more painful and difficult to access. The bottom of an earlobe is not a recommended site for capillary puncture in children.Rate this question:
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- 44.
In which of the following areas does capillary specimen collection differ from routine venipuncture for tests that can be collected either way?
- A.
Additives used
- B.
Antiseptic used
- C.
Id procedures
- D.
Order of draw
Correct Answer
D. Order of drawExplanation
Capillary specimen collection differs from routine venipuncture in terms of the order of draw. The order of draw refers to the sequence in which different tubes are filled with blood during the collection process. In capillary specimen collection, the order of draw may be different compared to routine venipuncture. This is because capillary blood may contain tissue fluid or contaminants from the skin, which can affect the accuracy of certain tests. Therefore, the order of draw may be adjusted to minimize the risk of cross-contamination between tubes and ensure accurate test results.Rate this question:
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- 45.
The distance between the skin surface and the bone in the end segment of a finger is:
- A.
Shortest at the side and the tip.
- B.
Equal throughout the fingertip.
- C.
Thickest of all in fifth fingers.
- D.
Thinnest in the middle finger.
Correct Answer
A. Shortest at the side and the tip.Explanation
The end segment of a finger refers to the area near the fingertip. The distance between the skin surface and the bone is shortest at the side and the tip because the skin is thinner in these areas compared to the middle. This makes sense as the sides and tip of the finger are more exposed and have less tissue, while the middle finger has a thicker layer of tissue.Rate this question:
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- 46.
The major blood vessels of the skin are located:
- A.
At the dermal-subcutaneous junction.
- B.
Between the epidermis and the dermis.
- C.
In the epidermis and the subcutaneous.
- D.
Within the epidermis and the dermis.
Correct Answer
A. At the dermal-subcutaneous junction.Explanation
The correct answer is "At the dermal-subcutaneous junction." This is because the major blood vessels of the skin are located in the layer where the dermis and subcutaneous tissue meet. This location allows for efficient blood flow to the skin, supplying it with oxygen and nutrients while also helping to regulate body temperature. The blood vessels in this area also play a role in the immune response and wound healing processes.Rate this question:
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- 47.
A capillary puncture that parallels the whorls of the fingerprint will:
- A.
Allow blood to run down the finger.
- B.
Cause blood to form in round drops.
- C.
Continue to bleed for a lot longer.
- D.
Make specimen collection easier.
Correct Answer
A. Allow blood to run down the finger.Explanation
A capillary puncture that parallels the whorls of the fingerprint will allow blood to run down the finger. This is because the puncture is made in the direction of the natural flow of blood vessels in the finger, which allows the blood to flow more easily and smoothly. This can make the process of collecting a blood sample easier and more efficient.Rate this question:
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- 48.
A list of capillary puncture equipment would exclude:
- A.
Blood culture bottles.
- B.
Various lancet types.
- C.
Microcollection tubes.
- D.
Skin warming devices.
Correct Answer
A. Blood culture bottles.Explanation
Blood culture bottles would be excluded from a list of capillary puncture equipment because capillary puncture is a method of collecting small amounts of blood from the capillaries, typically for diagnostic testing or monitoring purposes. Blood culture bottles, on the other hand, are used to collect larger volumes of blood for the purpose of culturing and identifying bacteria or fungi in the blood. Therefore, blood culture bottles are not typically used in capillary puncture procedures and would be excluded from a list of capillary puncture equipment.Rate this question:
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- 49.
Which color-coded microtube would be used to collect a CBC?
- A.
Gray
- B.
Green
- C.
Lavender
- D.
Yellow
Correct Answer
C. LavenderExplanation
Lavender-colored microtubes are used to collect a CBC (Complete Blood Count). A CBC is a common blood test that provides information about the different types of cells in the blood, including red blood cells, white blood cells, and platelets. The lavender microtube contains an anticoagulant called EDTA (Ethylenediaminetetraacetic acid), which helps prevent the blood from clotting and allows for accurate analysis of the blood cells.Rate this question:
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- 50.
If the following tests are collected from a patient by capillary puncture, which test specimen is collected first?
- A.
Bilirubin
- B.
CBC
- C.
Lytes
- D.
Glucose
Correct Answer
B. CBCExplanation
CBC stands for Complete Blood Count, which is a common test that provides important information about the different components of blood, such as red blood cells, white blood cells, and platelets. It is often used as a screening test or to diagnose various conditions. Since CBC requires a relatively larger amount of blood compared to the other tests mentioned, it is usually collected first to ensure that an adequate sample is obtained before performing other tests.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Jul 10, 2012Quiz Created by
Phbmuststudy
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