#1
Which of the following is a common phlebotomy equipment?
Vacutainer
ExplanationCommonly used for blood collection via vacuum suction.
#2
What is the primary purpose of a tourniquet in phlebotomy?
To dilate the vein
ExplanationConstricts blood flow, making veins easier to locate and access.
#3
What is the primary purpose of a blood culture collection?
To diagnose bacterial infections
ExplanationDetects presence of bacteria in the bloodstream.
#4
Which of the following is a suitable site for capillary puncture?
Earlobe
ExplanationRich in capillaries and easily accessible for puncture.
#5
What is the primary purpose of a lancet in capillary puncture?
To incise the skin for blood collection
ExplanationCreates a small puncture for blood sampling.
#6
Which of the following is an appropriate technique for stopping bleeding after venipuncture?
Applying direct pressure to the site
ExplanationControls bleeding and promotes clot formation.
#7
Which of the following veins is commonly used for venipuncture?
Basilic vein
ExplanationCommonly accessed due to its size and accessibility.
#8
What is the appropriate angle for inserting a needle during venipuncture?
45 degrees
ExplanationOptimal angle for successful puncture and blood flow.
#9
What is the purpose of an evacuated blood collection tube in phlebotomy?
To provide a vacuum for blood collection
ExplanationCreates negative pressure, aiding blood flow into the tube.
#10
Which color tube is commonly used for collecting blood samples for a complete blood count (CBC)?
Purple
ExplanationContains EDTA, preserving blood for cell counting.
#11
Which of the following veins is typically used for venipuncture in infants?
Cephalic vein
ExplanationAccessible and suitable for small veins in infants.
#12
What is the purpose of palpating before venipuncture?
To confirm vein location
ExplanationAssesses vein size, depth, and condition for successful puncture.
#13
Which of the following is an important step after drawing blood during phlebotomy?
All of the above
ExplanationEnsures safety, proper sample handling, and patient comfort.
#14
What is the recommended order of draw for multiple blood specimen collection?
Yellow, Lavender, Green, Red
ExplanationPrevents cross-contamination and ensures accurate results.
#15
Which of the following is a potential complication of phlebotomy?
Hematoma
ExplanationOccurs due to blood leaking into surrounding tissues.
#16
Which of the following is a critical step before performing a venipuncture procedure?
Confirming the patient's identity
ExplanationEnsures correct patient and prevents errors.
#17
Which of the following is a common complication associated with arterial puncture?
Thrombosis
ExplanationFormation of blood clot within the artery.
#18
What is the primary reason for discarding the first few milliliters of blood drawn during a venipuncture?
To prevent contamination
ExplanationClears residual tissue fluids, reducing risk of contamination.