Practice Test Geeks(ASPT) American Society of Phlebotomy Technicians Practice Test
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Blood Collection Equipment & Supplies Flashcards

7 cards from real ASPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Blood Collection Equipment & Supplies flashcards as text

  1. According to CLSI guidelines, which specimen should be collected FIRST in the order of draw?

    Answer: Blood culture bottles

    Blood culture bottles are drawn first to minimize the risk of contamination from tube additives that could interfere with microbial culture results.

  2. Which tube is collected immediately after blood culture bottles in the CLSI order of draw?

    Answer: Sodium citrate (light blue)

    Sodium citrate (light blue) tubes are drawn second to ensure the precise 9:1 blood-to-citrate ratio is achieved before any additive carryover from other tubes can occur.

  3. What is the consequence of collecting a light blue (sodium citrate) tube AFTER a green (heparin) tube?

    Answer: Heparin carryover can falsely prolong coagulation times

    Heparin contamination carried over into a sodium citrate tube can falsely prolong PT and PTT, leading to clinically significant errors in coagulation testing.

  4. Which equipment is used to collect arterial blood gas (ABG) specimens?

    Answer: Pre-heparinized ABG syringe

    ABGs are collected using a specially designed pre-heparinized syringe to prevent clotting and preserve oxygen and carbon dioxide values at the time of collection.

  5. What is the correct method for disposing of a contaminated needle immediately after venipuncture?

    Answer: Drop it directly into an approved sharps container without recapping

    OSHA standards require that contaminated needles be dropped directly into an approved sharps container immediately after use to prevent needlestick injuries.

  6. The royal blue-top tube is specifically designed for which category of laboratory testing?

    Answer: Trace element and toxicology testing

    Royal blue-top tubes are manufactured with low-metal stoppers and special materials to prevent trace metal contamination, making them suitable for trace element, toxicology, and nutritional analyses.

  7. Which action during syringe blood collection is MOST likely to cause hemolysis?

    Answer: Pulling the plunger back too rapidly

    Pulling the syringe plunger back too rapidly creates excessive negative pressure that can rupture red blood cells, causing hemolysis and potentially invalidating test results.