#1
What is the primary purpose of phlebotomy?
To draw blood for medical testing
ExplanationBlood collection for diagnostic purposes.
#2
Which of the following veins is commonly used for venipuncture?
Cephalic vein
ExplanationCommon vein in the forearm for blood extraction.
#3
What is the recommended angle for inserting a needle during venipuncture?
90 degrees
ExplanationOptimal angle for needle insertion.
#4
Which of the following is a potential complication of phlebotomy?
Phlebitis
ExplanationInflammation of veins due to the procedure.
#5
Which of the following veins is typically preferred for venipuncture in pediatric patients?
Dorsal metacarpal veins
ExplanationCommon site for blood collection in children's hands.
#6
What is the purpose of gently mixing blood collection tubes after specimen collection?
To ensure proper mixing of additives
ExplanationEnsures homogenous distribution of additives in the sample.
#7
What does the term 'anticoagulant' refer to in phlebotomy?
A substance that prevents blood clotting
ExplanationPrevents blood from clotting during collection.
#8
Which of the following is NOT a common phlebotomy technique?
Subcutaneous injection
ExplanationMethod of administering medication, not blood collection.
#9
What does the term 'hemolysis' mean in the context of blood collection?
The breakdown of red blood cells
ExplanationRupture of red blood cells leading to sample contamination.
#10
Which of the following additives is commonly used in blood collection tubes to prevent clotting?
Heparin
ExplanationAnticoagulant commonly used in blood collection tubes.
#11
Which of the following tests typically requires a fasting specimen?
Glucose testing
ExplanationPatient must abstain from food to get accurate results.
#12
What is the primary function of a needle holder during phlebotomy?
To control the depth of needle insertion
ExplanationEnsures consistent and safe needle insertion depth.
#13
What is the purpose of using a tourniquet during venipuncture?
To facilitate vein dilation
ExplanationAids in enlarging veins for easier puncture.
#14
What is the standard procedure for disposing of used needles after phlebotomy?
Placing in a sharps container
ExplanationSafe disposal to prevent needlestick injuries.
#15
Which of the following is a complication associated with improper application of a tourniquet during venipuncture?
Hemolysis
ExplanationLeads to the rupture of red blood cells.
#16
What is the appropriate procedure for verifying patient identification before venipuncture?
Match the patient's name, date of birth, and medical record number
ExplanationEnsures correct patient and specimen matching.
#17
What is the purpose of palpating the vein before venipuncture?
To assess vein integrity and size
ExplanationDetermines suitable vein for successful puncture.