National Center for Competency Testing Flashcards

Which tube color is used for collecting specimens requiring EDTA as an anticoagulant?

Answer: Lavender

Lavender (purple) top tubes contain EDTA and are used for hematology tests such as a complete blood count (CBC).

What is the primary purpose of inverting evacuated tubes after collection?

Answer: To mix the blood with the tube's additive

Gentle inversion mixes blood with the additive (anticoagulant or clot activator) to ensure proper specimen preparation.

A patient is identified as a 'difficult stick.' Which site is an acceptable alternative to the antecubital fossa?

Answer: Hand or wrist veins

Hand or wrist veins are an acceptable alternative when antecubital veins are inaccessible; ankle veins require physician order.

Which condition requires a phlebotomist to use a smaller gauge needle and gentle aspiration?

Answer: Dehydration with collapsed veins

Dehydrated patients often have fragile, collapsed veins that require a smaller gauge needle and gentle suction to avoid vein collapse.

Under NCCT standards, how should a phlebotomist handle a needlestick injury?

Answer: Squeeze the wound, wash thoroughly, and report immediately to a supervisor

NCCT and OSHA protocols require immediately squeezing the wound, washing with soap and water, and reporting to a supervisor for follow-up care.

Which federal regulation governs the handling of bloodborne pathogens and applies directly to phlebotomists?

Answer: OSHA Bloodborne Pathogens Standard 29 CFR 1910.1030

OSHA's Bloodborne Pathogens Standard (29 CFR 1910.1030) mandates safety practices to protect healthcare workers from exposure to infectious materials.

What is the correct angle range for needle insertion during routine venipuncture?

Answer: 15–30 degrees

A 15–30 degree angle allows the needle to enter the vein cleanly while minimizing the risk of passing through it.