#1
Which of the following is not a primary function of phlebotomy?
Administering medication
ExplanationPhlebotomy does not involve administering medication; its primary functions include blood collection and sample handling.
#2
What is the recommended procedure for identifying a patient before performing a blood draw?
Check the patient's ID bracelet and ask the patient to confirm their name and date of birth
ExplanationVerifying the patient's identity through their ID bracelet and confirming details directly with the patient reduces the risk of errors in blood collection.
#3
What is the appropriate order of draw for multiple blood collection tubes?
Red, Green, Gray, Lavender
ExplanationFollowing the correct order of draw prevents cross-contamination and ensures accurate test results by maintaining tube integrity and minimizing carryover.
#4
What is the first step in the process of performing a venipuncture?
Verifying the physician's order for the blood test
ExplanationConfirming the physician's order ensures that blood collection is performed accurately and according to the patient's medical needs and requisitions.
#5
Which of the following is a common complication of prolonged tourniquet application during venipuncture?
Decreased visibility of veins
ExplanationProlonged tourniquet application can lead to vein collapse or engorgement, reducing vein visibility and complicating venipuncture.
#6
What is the recommended site for routine venipuncture in adults?
Median cubital vein
ExplanationThe median cubital vein is the preferred site for venipuncture in adults due to its accessibility and low risk of complications.
#7
What is the most common complication associated with phlebotomy?
Hematoma
ExplanationHematoma formation is the most common complication of phlebotomy, often caused by improper needle insertion or removal.
#8
Which of the following anticoagulants is commonly used in blood collection tubes?
Heparin
ExplanationHeparin is frequently used as an anticoagulant in blood collection tubes to prevent clotting and ensure sample integrity.
#9
Which of the following is a crucial step to prevent hemolysis during blood collection?
Avoiding excessive probing of the vein
ExplanationExcessive probing of the vein can cause hemolysis by damaging red blood cells, so it's essential to handle the vein with care.
#10
What is the angle range for inserting the needle during venipuncture?
60-90 degrees
ExplanationInserting the needle at an angle between 60 and 90 degrees optimizes successful venipuncture by ensuring proper vein access.
#11
Which of the following is an acceptable technique for disposing of used needles?
Disposing of the needle in a puncture-proof container labeled as 'sharps'
ExplanationSafe disposal of used needles involves placing them in a puncture-proof container labeled as 'sharps' to prevent injuries and contamination.
#12
What is the most appropriate action if a patient faints during a blood draw?
Lower the patient's head and elevate their legs
ExplanationLowering the patient's head and elevating their legs helps restore blood flow to the brain, aiding in recovery from fainting.
#13
What is the appropriate action if a patient experiences severe pain during venipuncture?
Withdraw the needle and reinsert it at a different angle or site
ExplanationSevere pain during venipuncture indicates improper needle placement; withdrawing and reinserting the needle at a different angle or site can alleviate discomfort.
#14
Which of the following is NOT a recommended action for maintaining patient comfort during blood collection?
Rushing through the procedure to minimize time spent with the patient
ExplanationPatient comfort is prioritized during blood collection, and rushing through the procedure can lead to errors, increased discomfort, and compromised sample quality.
#15
What is the appropriate action if a patient refuses to have blood drawn?
Respect the patient's decision and document the refusal
ExplanationRespecting the patient's autonomy and documenting their refusal ensures ethical practice and accurate medical records.
#16
Which of the following is NOT a potential cause of hemolysis during blood collection?
Using a small gauge needle
ExplanationUsing a small gauge needle minimizes trauma to red blood cells and reduces the risk of hemolysis during blood collection, making it an unlikely cause.