Phlebotomy Test American Medical Technologists 3

Question 1

Which vein is considered the FIRST choice for venipuncture in most patients?

Accepted Answer

Median cubital vein

Answer

The median cubital vein is preferred because it is large, well-anchored, and usually away from major arteries and nerves.

Question 2

What does 'chain of custody' mean in phlebotomy practice?

Accepted Answer

Documentation tracking specimen handling from collection to result

Answer

Chain of custody is the unbroken documentation trail ensuring specimen integrity, especially for forensic or drug testing samples.

Question 3

When performing a capillary puncture on a newborn, the preferred site is the:

Accepted Answer

Plantar surface of the heel

Answer

The plantar (bottom) surface of the heel is used for neonatal capillary puncture because infant fingers lack sufficient tissue depth.

Question 4

What is the purpose of inverting collection tubes after drawing blood?

Accepted Answer

To mix the additive thoroughly with blood

Answer

Gentle inversions ensure the tube additive (anticoagulant or clot activator) mixes completely with the blood sample.

Question 5

Which condition contraindicates drawing blood from an arm?

Accepted Answer

An IV is running in that arm

Answer

Drawing from an arm with a running IV dilutes the sample and produces inaccurate results; use the opposite arm or below the IV site.

Phlebotomy Practice Test