AAMA Phlebotomy and Specimen Collection 2

Question 1

Which tube additive is found in a light blue-top (sodium citrate) tube and is used for coagulation studies?

Accepted Answer

Sodium citrate

Answer

Light blue-top tubes contain sodium citrate, which chelates calcium to prevent clotting and is used for PT, aPTT, and other coagulation tests.

Question 2

A patient's arm veins are not visible. What is the BEST alternative site for venipuncture in an adult?

Accepted Answer

Hand veins

Answer

Hand veins are the preferred alternative when antecubital veins are inaccessible, as they are accessible and relatively safe.

Question 3

What is the maximum angle recommended for needle insertion during a routine venipuncture?

Accepted Answer

30 degrees

Answer

A 15–30 degree angle is appropriate; 30 degrees is the maximum to avoid going through the vein.

Question 4

Which specimen collection technique is used to detect bacteremia or septicemia?

Accepted Answer

Blood culture collection

Answer

Blood cultures are drawn to detect bacteria or fungi in the bloodstream, diagnosing bacteremia or septicemia.

Question 5

The order of draw for evacuated tubes places the SST (gold/tiger-top) immediately after:

Accepted Answer

Blood culture bottles

Answer

Per CLSI guidelines, blood culture bottles are drawn first, followed by light blue, then SST/gold tubes.

(AAMA) American Association of Medical Assistants Certified Practice Test