Phlebotomy Test American Medical Technologists 2

Question 1

Which anticoagulant is found in a light-blue top tube used for coagulation studies?

Accepted Answer

Sodium citrate

Answer

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

Question 2

What is the AMT's primary credential for phlebotomists?

Accepted Answer

RPT

Answer

The AMT awards the Registered Phlebotomy Technician (RPT) credential to qualified phlebotomists.

Question 3

During a venipuncture, the tourniquet should be released:

Accepted Answer

As soon as blood flow is established

Answer

The tourniquet should be released as soon as blood begins to flow to prevent hemoconcentration.

Question 4

A patient's arm shows a hematoma at the venipuncture site. The phlebotomist should FIRST:

Accepted Answer

Remove the needle and apply firm pressure

Answer

When a hematoma forms, the needle must be removed immediately and firm pressure applied to minimize bruising.

Question 5

Which needle gauge is most commonly used for routine adult venipuncture?

Accepted Answer

21 gauge

Answer

A 21-gauge needle is the standard choice for routine adult venipuncture, balancing flow rate and patient comfort.

Phlebotomy Practice Test