Phlebotomy and Blood Collection Quiz

Test your knowledge of phlebotomy with these questions on venipuncture, tube types, and blood collection techniques. How well do you know your stuff?

#1

Which of the following veins is commonly used for venipuncture?

Radial vein
Cephalic vein
Brachial vein
Dorsal vein
#2

What is the purpose of using an alcohol swab before venipuncture?

To sterilize the skin
To numb the area
To dilate the veins
To prevent clotting
#3

Which anticoagulant is commonly used for blood collection in a lavender-top tube?

EDTA
Heparin
Sodium citrate
Potassium oxalate
#4

What is the recommended angle for inserting the needle during routine venipuncture?

15-20 degrees
30-45 degrees
60-75 degrees
90 degrees
#5

Which vein is typically used for venipuncture in pediatric patients?

Cephalic vein
Brachial vein
Dorsal vein
Median cubital vein
#6

What is the primary purpose of applying a tourniquet during venipuncture?

To prevent blood flow
To dilate the veins
To reduce the risk of infection
To secure the needle in place
#7

Which gauge of needle is typically used for routine venipuncture in adults?

18 gauge
20 gauge
22 gauge
24 gauge
#8

Which of the following is a common complication of venipuncture?

Hypotension
Hypoglycemia
Infection
Hypokalemia
#9

What is the recommended order of draw when using a multi-sample needle?

Red, blue, green, lavender
Green, red, lavender, blue
Blue, green, lavender, red
Lavender, green, blue, red
#10

Which of the following tests is most commonly ordered to assess kidney function?

Lipid panel
Liver function tests
Complete Blood Count (CBC)
Creatinine
#11

What is the primary function of a vacutainer tube during blood collection?

To store blood
To prevent coagulation
To collect blood under vacuum pressure
To measure blood pressure
#12

Which of the following veins is often chosen for venipuncture when other sites are inaccessible?

Femoral vein
Popliteal vein
Saphenous vein
Dorsal venous network
#13

What does the acronym CBC stand for in the context of blood tests?

Complete Blood Count
Comprehensive Blood Chemistry
Coagulation Blood Check
Cellular Blood Composition
#14

Which of the following is NOT a common complication of venipuncture?

Hematoma
Sepsis
Thrombophlebitis
Petechiae
#15

What is the primary purpose of gently mixing blood in a collection tube after venipuncture?

To prevent blood clotting
To enhance coagulation
To promote hemolysis
To evenly distribute anticoagulant
#16

Which of the following blood components is primarily responsible for oxygen transport?

Erythrocytes
Leukocytes
Platelets
Plasma
#17

Which of the following is a complication of phlebotomy that may occur if the tourniquet is left on too long?

Hematoma
Syncope
Thrombosis
Petechiae
#18

Which of the following tests requires a fasting specimen?

Complete Blood Count (CBC)
Prothrombin Time (PT)
Glucose
Creatinine
#19

What is the primary purpose of using a butterfly needle during venipuncture?

To collect multiple tubes of blood simultaneously
To access difficult veins
To reduce the risk of hematoma formation
To apply pressure to the venipuncture site
#20

What is the maximum time recommended for the tourniquet to remain on the patient's arm during venipuncture?

1 minute
2 minutes
3 minutes
4 minutes
#21

Which of the following tubes is typically used for coagulation studies?

Red-top tube
Green-top tube
Lavender-top tube
Light blue-top tube
#22

Which anticoagulant is commonly used in a green-top tube for plasma determination?

EDTA
Heparin
Sodium citrate
Sodium fluoride
#23

What is the recommended site for capillary blood collection in infants?

Heel
Antecubital fossa
Wrist
Forehead
#24

Which of the following additives is commonly found in a gray-top tube?

EDTA
Sodium citrate
Heparin
Potassium oxalate
#25

What is the primary purpose of warming the site prior to capillary puncture?

To dilate the veins
To prevent clotting
To minimize patient discomfort
To enhance blood flow

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