RMA Venipuncture and Phlebotomy

Question 1

Which vein is most commonly used for routine venipuncture in adults?

Accepted Answer

Median cubital vein

Answer

Cephalic vein

Answer

Basilic vein

Answer

Femoral vein

Question 2

What is the purpose of applying a tourniquet before venipuncture?

Accepted Answer

To dilate the veins and make them easier to access

Answer

To prevent bleeding after the needle is removed

Answer

To numb the skin before needle insertion

Answer

To prevent the patient from moving during the procedure

Question 3

In the correct order of draw for multiple tube collection, which tube is collected FIRST?

Accepted Answer

Sodium citrate (light blue top)

Answer

EDTA (lavender top)

Answer

SST/serum separator (gold or red/gray top)

Answer

Heparin (green top)

Question 4

What does the term 'hematoma' refer to in the context of phlebotomy?

Accepted Answer

A collection of blood that escapes from a vessel into surrounding tissue

Answer

A condition where the needle enters an artery instead of a vein

Answer

Hemolysis of red blood cells in the collection tube

Answer

Fainting caused by the sight of blood during a blood draw

Question 5

Which color top tube is used to collect blood for a complete blood count (CBC)?

Accepted Answer

Lavender top (EDTA)

Answer

Red top (no additive)

Answer

Light blue top (sodium citrate)

Answer

Green top (lithium heparin)

Question 6

If a patient is on anticoagulant therapy such as warfarin, what special consideration should the medical assistant take after venipuncture?

Accepted Answer

Apply pressure to the site for a longer duration to prevent excessive bleeding

Answer

Use a larger gauge needle to reduce the number of puncture attempts

Answer

Avoid using a tourniquet to prevent bruising

Answer

Collect the blood sample in a red top tube only