Phlebotomy practice test: free NHA Certified Clinical Medical Assistant (CCMA) questions

Sample Practice Questions for Phlebotomy

1. Question 1Ref: NHA CCMA Test Plan 2022 — Section 3E: Phlebotomy

   What is the correct order of draw for vacuum tubes when collecting blood specimens using a multisample needle?

   ABlood culture, SST, EDTA, sodium citrateBEDTA, sodium citrate, SST, blood cultureCBlood culture, sodium citrate, SST, EDTADSST, EDTA, sodium citrate, blood culture
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   Correct Answer
   C. Blood culture, sodium citrate, SST, EDTA

   The correct order of draw prevents cross-contamination of additives between tubes. Blood culture bottles are always collected first to maintain sterility. Sodium citrate (blue-top) is drawn next, before SST (red/gold), then EDTA (lavender). Drawing tubes in the wrong order can cause inaccurate test results due to additive carryover between tubes.

2. Question 2Ref: NHA CCMA Test Plan 2022 — Section 3E: Phlebotomy

   A medical assistant is preparing to draw blood using the evacuated tube system. What is the correct technique for anchoring the vein?

   AHold the tourniquet in place with the non-dominant handBPress the needle hub against the skin before advancingCApply firm pressure below the venipuncture site with the thumbDApply firm pressure above the venipuncture site with the thumb
   Show Answer & Explanation

   Correct Answer
   C. Apply firm pressure below the venipuncture site with the thumb

   To anchor the vein, the medical assistant should use the thumb of the non-dominant hand to apply gentle traction to the skin below the venipuncture site (distal to the tourniquet). This stabilizes the vein and prevents it from rolling during needle insertion. Applying pressure above the site would compress the vein and make it harder to access.