Certified Phlebotomy Technician Exam Certified Phlebotomy Technician (CPT) MCQ 3

Question 1

A blood culture collection requires which of the following skin antiseptic protocols?

Accepted Answer

Povidone-iodine or chlorhexidine gluconate after alcohol

Answer

Blood cultures require a two-step disinfection: 70% isopropyl alcohol followed by either povidone-iodine or chlorhexidine gluconate to reduce the risk of contamination.

Question 2

Which tube color is used to collect specimens for lead testing?

Accepted Answer

Royal blue (EDTA)

Answer

Royal blue-top tubes with EDTA are used for trace element and heavy metal testing, including lead, because they are manufactured to minimize metal contamination.

Question 3

A phlebotomist notices petechiae on a patient's arm after tourniquet application. This finding may indicate:

Accepted Answer

A platelet or capillary disorder

Answer

Petechiae (small red spots) appearing after tourniquet use suggest a possible platelet deficiency or capillary fragility disorder and should be reported to the clinician.

Question 4

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

Accepted Answer

1 minute

Answer

A tourniquet should not remain in place for more than 1 minute, as prolonged application causes hemoconcentration and can alter test results.

Question 5

When collecting a specimen for ammonia testing, which special handling step is required?

Accepted Answer

Place specimen on ice and transport immediately

Answer

Ammonia specimens must be placed on ice immediately after collection and transported quickly because ammonia levels rise rapidly at room temperature.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Certified Phlebotomy Technician (CPT) MCQ 3