ASPT Blood Collection Equipment & Supplies

Question 1

Which tube color indicates the presence of EDTA as an additive?

Accepted Answer

Lavender/Purple

Answer

Red

Answer

Green

Answer

Yellow

Question 2

What is the primary purpose of yellow-top tubes containing sodium polyanethol sulfonate (SPS)?

Accepted Answer

Blood cultures

Answer

Coagulation studies

Answer

Serum chemistry panels

Answer

Whole blood glucose testing

Question 3

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

Accepted Answer

20–21 gauge

Answer

16–18 gauge

Answer

23–25 gauge

Answer

27–30 gauge

Question 4

The green-top tube contains which anticoagulant?

Accepted Answer

Heparin

Answer

Sodium citrate

Answer

EDTA

Answer

Potassium oxalate

Question 5

How many times should an EDTA tube be inverted after blood collection to ensure proper mixing?

Accepted Answer

8–10 times

Answer

2–3 times

Answer

5–6 times

Answer

12–15 times

Question 6

Which collection device is BEST suited for patients with fragile, small, or difficult veins?

Accepted Answer

Butterfly (winged infusion) set

Answer

Straight needle with evacuated tube holder

Answer

18-gauge needle with syringe

Answer

Lancet device

Question 7

Which tube color is used for prothrombin time (PT) and partial thromboplastin time (PTT) testing?

Accepted Answer

Light blue

Answer

Lavender

Answer

Green

Answer

Gold/SST