Phlebotomy Test Venipuncture Procedures 2

Question 1

Which vein is considered the FIRST choice for routine venipuncture in most patients?

Accepted Answer

Median cubital vein

Answer

Cephalic vein

Answer

Basilic vein

Answer

Median antebrachial vein

Question 2

What is the maximum recommended time a tourniquet should remain applied before venipuncture?

Accepted Answer

1 minute

Answer

30 seconds

Answer

2 minutes

Answer

3 minutes

Question 3

A phlebotomist notices the needle bevel is facing downward during insertion. What problem will likely occur?

Accepted Answer

Failure to enter the vein or poor blood flow

Answer

Hemolysis of the sample

Answer

Air bubbles in the tube

Answer

Petechiae at the site

Question 4

When using an evacuated tube system, which tube should be filled LAST to avoid carryover contamination?

Accepted Answer

Lavender EDTA

Answer

Red/gold SST

Answer

Light blue citrate

Answer

Green heparin

Question 5

A patient's arm shows signs of a hematoma forming during blood draw. What is the FIRST action to take?

Accepted Answer

Release the tourniquet and remove the needle immediately

Answer

Apply more pressure to the tourniquet

Answer

Redirect the needle to find the vein

Answer

Continue drawing to complete the collection

Question 6

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

Accepted Answer

21 gauge

Answer

18 gauge

Answer

23 gauge

Answer

25 gauge

Question 7

After venipuncture, gauze pressure should be applied for at least how long to ensure hemostasis in a normal patient?

Accepted Answer

1–2 minutes

Answer

30 seconds

Answer

5 minutes

Answer

10 minutes