Deck 39: Phlebotomy: Venipuncture and Capillary Puncture

Question 1

Which of the following is the first step in performing a successful venipuncture?

A)Position the patient in a sitting position. 
B)Use non-sterile disposable gloves. 
C)Clean the site with an alcohol prep pad. 
D)Put the patient at ease.

Answer 1

Put the patient at ease.

Question 2

Which of the following is NOT a function of the blood?

A)Assist in food metabolism  
B)Transport oxygen to tissues  
C)Transport waste products to organs for elimination  
D)Transport nutrients to all parts of the body

Answer 2

Assist in food metabolism  

Question 3

Which of the following best describes when a syringe is most often used for venipuncture?

A)When large blood samples are needed  
B)When collecting small amounts of blood from fragile veins  
C)When a patient has a good vein in the antecubital area  
D)When multiple tubes are needed

Answer 3

When collecting small amounts of blood from fragile veins  

Question 4

What happens during the clotting process of blood?

A)Buffy coat is formed
B)Formation of plasma  
C)Converts fibrinogen to fibrin
D)Plasma degradation

Question 5

Which of the following best describes the correct application of a tourniquet?

A)Apply 3 to 4 inches below the puncture site. 
B)Leave on the arm no longer than 3 minutes. 
C)Apply 3 to 4 inches above the puncture site. 
D)Apply to the upper arm at the level of the deltoid.

Question 6

What is the gauge of needles most commonly used in venipuncture?

A)20, 21, and 16
B)18, 20, and 21  
C)20, 21, and 22
D)21, 22, and 23

Question 7

Which of the following is NOT included in the necessary information written on the specimen tube label?

A)Complete name of patient
B)Address of patient  
C)Date and time specimen drawn
D)Patient identification number

Question 8

Which of the following is the appropriate action when palpating for a vein in the upper arm?

A)Place the patient's arm in an upward position. 
B)Always select a rolling vein. 
C)Palpate the vein with your thumb. 
D)Palpate the vein with the tip of your index finger.

Question 9

Which of the following best describes how a tube with anticoagulants is identified?

A)Size of the tube
B)Tube stopper color  
C)Test name on label
D)Laboratory use

Question 10

Which of the following best describes an advantage of a soft rubber tourniquet?

A)Inexpensive enough to replace often
B)Hard and plastic  
C)Cannot be cleaned easily
D)Expensive but long lasting

Question 11

When a blood sample cannot be obtained, which of the following should be done?

A)Advance the needle slightly.
B)Withdraw the needle slightly. 
C)Try another tube.
D)All the above.

Question 12

Which of the following blood cells is responsible for the transport of oxygen and carbon dioxide?

A)Erythrocytes
B)Leukocytes  
C)Thrombocytes
D)Lymphocytes

Question 13

Which of the following is the most appropriate action when using a phlebotomy tray?

A)Use to transport blood specimens only. 
B)Label with an approved biohazard symbol. 
C)Keep covered with a sterile cover. 
D)Keep away from patient examination rooms.

Question 14

When a blood pressure cuff is used as a tourniquet, the cuff should be maintained at what pressure ?

A)Slightly below the systolic pressure
B)Slightly above the systolic pressure  
C)Slightly above the diastolic pressure
D)Slightly below the diastolic pressure

Question 15

Which of the following is NOT the medical assistant's role in phlebotomy?

A)Collect blood as efficiently as possible. 
B)Provide high-quality care to patients. 
C)Perform blood testing using automated equipment only. 
D)Performs tasks that are critical to patient's diagnosis.

Question 16

The plasma and red blood cells are separated by what when using anticoagulated tubes?

A)Serum
B)Fibrinogen  
C)Buffy coat
D)Platelets

Question 17

How many liters of blood does the body contain?

A)3
B)6  
C)8
D)10

Question 18

Which of the following best describes the purpose of additives?

A)Anticoagulant to prevent clotting  
B)Chemical to help preserve blood  
C)Substance to accelerate the clotting process  
D)All of the above

Question 19

Which of the following best describes why OSHA requires safety needles be made available to employees?

A)Eliminates the need for biohazard waste containers  
B)Can only be used with specific guidelines  
C)Prevents on-the-job needle stick injuries  
D)Protects patients completely from accidental sticks

Question 20

Which of the following is the primary factory for the production of blood cells?

A)Lymph nodes
B)Thymus  
C)Bone marrow
D)Spleen

Question 21

Which of the following is a combination system that can be used with the syringe or the vacuum tube?

A)Capillary puncture system
B)Butterfly collection system  
C)Hematology system
D)Blood culture system

Question 22

Which of the following is the usual site for capillary puncture in adults?

A)Fingertip
B)Earlobe  
C)Heel
D)Toe

Question 23

Place the steps of blood clotting in correct sequence as it occurs.? 1.calcium utilized 4.fibrinogen converts to fibrin?
2)clot forms5.prothrombin converts to thrombin?
3)uncoagulated blood

A)3, 1, 5, 4, 2
B)3, 1, 4, 5, 2  
C)2, 1, 4, 5, 3
D)3, 2, 1, 5, 4

Question 24

Which of the following is the usual site for capillary puncture in infants?

A)Fingertip
B)Earlobe  
C)Heel
D)Toe

Question 25

Which of the following is NOT a factor that can affect laboratory values?

A)Fasting
B)Heparin  
C)Tourniquet on 1 minute or less
D)Exercise

Question 26

Which of the following method(s) is used to perform a venipuncture?

A)Syringe method
B)Vacuum tube method  
C)Butterfly method
D)All of the above  
E)None of the above

Question 27

Indicate whether each item applies to the syringe method or the vacuum tube system.

Do not need to use a blood transfer device.

A) syringe method
B) vacuum tube system

Question 28

Which of the following is NOT one of the arteries of the arm?

A)Radial
B)Brachial  
C)Femoral
D)Ulnar

Question 29

When performing a venipuncture, which vein is used the majority of the time?

A)Basilic
B)Median cubital  
C)Cephalic
D)Radial

Question 30

Which of the following best describes the cause of hemolysis?

A)Inverting evacuation tubes gently  
B)Using a needle that is too short  
C)Separating serum at the wrong time  
D)Puncturing the skin before allowing the alcohol to dry completely

Question 31

Pressure to the site must be held longer than 2 to 3 minutes after a venipuncture is performed if the patient is taking which of the following?

A)Coumadin
B)Aspirin  
C)Ginko biloba
D)All of the above

Question 32

Which of the following is NOT a quality assurance control?

A)Each specimen must have its own label attached to the specimen's primary container. 
B)Specimen must be in correct anticoagulant. 
C)Patient label must have complete information. 
D)Specimens are in syringes with a needle still attached.

Question 33

Which of the following is NOT an appropriate action when collecting a capillary blood sample?

A)Avoid squeezing the fingertip.
B)Use the first drop of blood. 
C)Use capillary tubes for collecting.
D)Massage the finger gently.

Question 34

Indicate whether each item applies to the syringe method or the vacuum tube system.

This has vacuum in the tubes.

A) syringe method
B) vacuum tube system

Question 35

Which of the following is in a mixture of blood obtained from capillary puncture specimens?

A)Blood from arterioles
B)Blood from venules  
C)Interstitial fluid
D)All the above

Question 36

Which of the following is the most appropriate next step when a medical assistant attempts a venipuncture on an adult patient and cannot obtain a sample, and a second medical assistant is also unsuccessful?

A)Explain the problem to the patient and try the other arm. 
B)Get another medical assistant to attempt a draw. 
C)Inform the physician of unsuccessful attempts. 
D)Schedule the patient to come back the next day.

Question 37

Indicate whether each item applies to the syringe method or the vacuum tube system.

This uses a multi-draw needle.

A) syringe method
B) vacuum tube system

Question 38

Indicate whether each item applies to the syringe method or the vacuum tube system.

Vacuum is created when plunger is pulled.

A) syringe method
B) vacuum tube system

Question 39

When using the safer plastic vacuum tubes, which of the following is the correct order of draw?

A)Cultures, blue top (citrate), red top and/or SST  
B)Blue top (citrate), red top and/or SST, cultures  
C)Cultures, red top and/or SST, blue top (citrate)

Question 40

Indicate whether each item applies to the syringe method or the vacuum tube system.

This is used less often in venipuncture.

A) syringe method
B) vacuum tube system

Question 41

Match the tube color with the laboratory use.

glucose testing

A) light gray top
B) light blue top
C) lavender/purple top
D) dark blue/royal blue top
E) red top

Question 42

Indicate whether each item applies to the syringe method or the vacuum tube system.

Pull gently with plunger.

A) syringe method
B) vacuum tube system

Question 43

Match the tube color with the laboratory use.

coagulation testing

A) light gray top
B) light blue top
C) lavender/purple top
D) dark blue/royal blue top
E) red top

Question 44

Match the tube color with the laboratory use.

chemistry testing

A) light gray top
B) light blue top
C) lavender/purple top
D) dark blue/royal blue top
E) red top

Question 45

Match the tube color with the laboratory use.

hematology(CBC) testing

A) light gray top
B) light blue top
C) lavender/purple top
D) dark blue/royal blue top
E) red top

Question 46

Match the tube color with the laboratory use.

toxicology testing

A) light gray top
B) light blue top
C) lavender/purple top
D) dark blue/royal blue top
E) red top