CPT (Certified Phlebotomy Technician) Practice Exam

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Study for the Certified Phlebotomy Technician Test with flashcards and multiple choice questions. Each question includes hints and explanations. Prepare for your exam efficiently!

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For a DARK GREEN tube, what test is typically run, which anticoagulant is used, and to which lab section is it sent?

Cardiac, lithium heparin, chemistry
Stat chemistry, sodium heparin, chemistry
Coagulation studies, sodium citrate, serology
Glucose GTT, potassium oxalate, chemistry

The correct answer is: Stat chemistry, sodium heparin, chemistry

For a DARK GREEN tube, the test typically run is a Stat chemistry test. The anticoagulant used in a dark green tube is sodium heparin. This tube is sent to the chemistry lab section for testing. Option A (Cardiac, lithium heparin, chemistry) is incorrect because lithium heparin tubes are usually green or mint green, not dark green. Option C (Coagulation studies, sodium citrate, serology) is incorrect because coagulation studies are typically collected in light blue tubes with sodium citrate as the anticoagulant, not dark green tubes. Option D (Glucose GTT, potassium oxalate, chemistry) is incorrect because glucose GTT (Glucose Tolerance Test) requires a gray tube with potassium oxalate and sodium fluoride as the additive, not a dark green tube.