ASCP Phlebotomy 3

Question 1

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

Accepted Answer

Median cubital vein

Answer

The median cubital vein is the preferred site for routine venipuncture because it is large, well-anchored, close to the surface, and less painful than other sites.

Question 2

A patient has an IV running in the left arm. What is the correct phlebotomy procedure?

Accepted Answer

Draw from the right arm

Answer

When a patient has an IV in one arm, the preferred approach is to draw blood from the opposite (contralateral) arm to avoid contamination from IV fluids.

Question 3

What is the maximum time a tourniquet should remain on a patient's arm during venipuncture?

Accepted Answer

1 minute

Answer

A tourniquet should not remain applied for more than 1 minute to prevent hemoconcentration and erroneous test results.

Question 4

Which antiseptic is required for blood culture collection site preparation?

Accepted Answer

Povidone-iodine or chlorhexidine

Answer

Blood culture site preparation requires povidone-iodine or chlorhexidine gluconate because these antiseptics provide more thorough skin disinfection than alcohol alone.

Question 5

Which of the following conditions would make a site unacceptable for venipuncture?

Accepted Answer

The arm is on the same side as a mastectomy

Answer

Venipuncture should never be performed on the arm on the same side as a mastectomy due to the risk of lymphedema and infection.

ASCP Phlebotomy Technician Exam Practice Test

ASCP Phlebotomy Technician Exam Practice Test

ASCP Phlebotomy 3