NHA Phlebotomy Certification Exam Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

NHA Phlebotomy Certification Exam Questions and Answers | Latest Version | 2025/2026 | Correct & Verified Which antiseptic is commonly used to clean the puncture site before drawing blood? 70% isopropyl alcohol How long should the antiseptic be allowed to air-dry before inserting the needle? 30 seconds What is the preferred site for venipuncture in adults? Median cubital vein Which vein should be avoided if it feels hard or cord-like? Sclerosed veins After collecting blood, what should be done immediately to prevent clotting in a serum tube? Invert the tube gently according to the additive 2 How long should a tourniquet be left on before the needle is inserted? No longer than 1 minute If a patient faints during venipuncture, what is the first action? Remove the needle and lower the patient to a safe position What is the correct way to dispose of a used needle? Place it in a sharps container without recapping When labeling a specimen, what information must be included? Patient name, date of birth, date and time of collection, and collector’s initials Which tube is typically used for coagulation studies like PT or APTT? Light blue top tube Which tube is used for complete blood count (CBC)? Lavender top tube 3 How should a phlebotomist handle a specimen that requires chilling? Place it in an ice slurry immediately after collection What is the maximum number of times you can attempt a venipuncture on the same patient in one session? Two attempts Which vein is most commonly used for hand draws if antecubital veins are inaccessible? Dorsal hand veins What is the first step if blood spills on the counter during collection? Follow proper biohazard cleanup procedures What is the main reason for using a tourniquet during venipuncture? To make the vein more prominent and easier to puncture Why is it important to check for patient allergies before blood collection? To prevent adverse reactions to antiseptics or latex 4 Which position is safest for a patient at risk of fainting? Seated or lying down with legs elevated How should a phlebotomist handle a patient who refuses a blood draw? Document the refusal and notify the provider What is the recommended action if a vein collapses during collection? Release the tourniquet and withdraw the needle, then attempt another site Which additive prevents clotting in plasma tubes for chemistry tests? Heparin Why is proper patient identification critical before drawing blood? To prevent mislabeling and ensure accurate test results How many times should a tube be inverted after collection if it contains EDTA? 8–10 gentle inversions 5 What is the correct angle of needle insertion for a standard venipuncture? 15–30 degrees What is the best way to minimize patient discomfort during venipuncture? Apply the tourniquet snugly, use the correct