National Phlebotomy Certification Exam Questions WITH VERIFIED ANSWERS

An individual who has little resistance to an infectious microbe is referred to as a susceptible what? Correct Answer: Host Which of the following is an example of a work practice control that reduces risk of exposure to bloodborne pathogens? Correct Answer: Wearing gloves to draw blood This ion is essential to the coagulation process. Correct Answer: Calcium QC protocols prohibit use of outdated evacuated tubes because why? Correct Answer: Tubes my not fill completely, changing additive-to-sample ratios. Molecular genetic testing requires what? Correct Answer: Specimens to be collected in sterile EDTA. What is the purpose of an antiglycolytic agent? Correct Answer: Preserve glucose Which on of the following tubes is filled first when multiple tubes are filled using an evacuated tube system? Correct Answer: Blood culture (SPS) tube What is the recommended disinfectant for blood culture sites in infants 2 months and older? Correct Answer: Chlorhexidine gluconate Latent fibrin formation in serum can result from what? Correct Answer: Incomplete clotting when centrifuged In which of the following areas does capillary specimen collection differ from routine venipuncture when collecting a BUN and CBC? Correct Answer: Order of draw This is an example of a preanalytical error made at the time of collection. Correct Answer: Failing to mix tubes What constitutes a positive modified Allen test? Correct Answer: The hand color returns to normal in 15 seconds. According to CLSI, which tubes should be placed upright as soon as they are mixed? Correct Answer: Nonanticoagulant gel tubes Reference values are higher for capillary specimens with what test? Correct Answer: Glucose