ASCP Orders and Equipment Selection 2

Question 1

Which tube stopper color contains sodium citrate as the anticoagulant and is primarily used for coagulation studies?

Accepted Answer

Light blue

Answer

Red

Answer

Green

Answer

Lavender

Question 2

A phlebotomist needs to collect blood for a blood gas analysis. Which of the following syringes or tubes should be selected?

Accepted Answer

Heparinized syringe

Answer

Lavender-topped tube

Answer

Gray-topped tube

Answer

Yellow-topped SPS tube

Question 3

When using a winged blood collection (butterfly) set, what is the first tube in the order of draw if coagulation tests are ordered?

Accepted Answer

A discard tube

Answer

Light blue top

Answer

Lavender top

Answer

Red top

Question 4

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

Accepted Answer

21 gauge

Answer

18 gauge

Answer

25 gauge

Answer

27 gauge

Question 5

What is the purpose of the rubber sleeve inside an evacuated tube holder?

Accepted Answer

To prevent blood from leaking when changing tubes

Answer

To prevent needle stick injuries

Answer

To maintain vacuum in the tube after needle insertion

Answer

To make the holder more comfortable to grip

Question 6

Which collection device is most appropriate for a pediatric patient requiring a small blood volume from a hand vein?

Accepted Answer

Winged infusion set (butterfly) with 23-gauge needle

Answer

Standard evacuated tube system with 21-gauge needle

Answer

Syringe with 18-gauge needle

Answer

Capillary tube with lancet