AMCA Phlebotomy and Blood Collection 2

Question 1

What does hemolysis of a blood sample indicate?

Accepted Answer

Red blood cells have ruptured, releasing their contents into the plasma

Answer

The sample has clotted prematurely

Answer

The sample has been contaminated with bacteria

Answer

White blood cell count has increased abnormally

Question 2

A hematoma begins to form at the venipuncture site during blood collection. What is the FIRST action to take?

Accepted Answer

Remove the needle immediately and apply direct pressure

Answer

Draw faster to complete the collection quickly

Answer

Reinsert the needle at a different angle

Answer

Loosen the tourniquet and continue drawing

Question 3

Which tube color is associated with EDTA as an additive and is used for hematology testing such as CBC?

Accepted Answer

Lavender/Purple

Answer

Red

Answer

Green

Answer

Yellow

Question 4

At what angle should a venipuncture needle be inserted to enter the vein correctly?

Accepted Answer

15–30 degrees

Answer

5–10 degrees

Answer

45–60 degrees

Answer

90 degrees

Question 5

What blood collection method is the standard of care for infants and newborns?

Accepted Answer

Capillary (heel stick) puncture

Answer

Venipuncture from the antecubital fossa

Answer

Arterial puncture from the radial artery

Answer

Central venous line collection

Question 6

What does "bevel up" mean when referring to needle insertion during venipuncture?

Accepted Answer

The slanted opening of the needle is facing upward toward the skin surface

Answer

The slanted opening of the needle is facing downward toward the vein floor

Answer

The needle is rotated 90 degrees after insertion

Answer

The needle hub is tilted upward at a steep angle

Question 7

Which of the following actions can CAUSE hemolysis during blood collection?

Accepted Answer

Vigorously shaking the collection tube after filling

Answer

Using a 21-gauge needle

Answer

Drawing blood slowly with a syringe

Answer

Keeping the collection tube at room temperature