National Phlebotomy Certification Exam Questions and Answers with Certified Solutions

National Phlebotomy Certification Exam Questions and Answers with Certified Solutions An individual who has little resistance to an infectious microbe is referred to as a susceptible what? - Answer ️️ -Host Which of the following is an example of a work practice control that reduces risk of exposure to bloodborne pathogens? - Answer ️️ -Wearing gloves to draw blood This ion is essential to the coagulation process. - Answer ️️ -Calcium QC protocols prohibit use of outdated evacuated tubes because why? - Answer ️️ -Tubes my not fill completely, changing additive-to-sample ratios. Molecular genetic testing requires what? - Answer ️️ -Specimens to be collected in sterile EDTA. What is the purpose of an antiglycolytic agent? - Answer ️️ -Preserve glucose Which on of the following tubes is filled first when multiple tubes are filled using an evacuated tube system? - Answer ️️ -Blood culture (SPS) tube What is the recommended disinfectant for blood culture sites in infants 2 months and older? - Answer ️️ -Chlorhexidine gluconate Latent fibrin formation in serum can result from what? - 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? - Answer ️️ -Order of draw This is an example of a preanalytical error made at the time of collection. - Answer ️️ -Failing to mix tubes What constitutes a positive modified Allen test? - 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? - Answer ️️ -Nonanticoagulant gel tubes Reference values are higher for capillary specimens with what test? - Answer ️️ -Glucose According to CLSI, the maximum time limit for separating serum or plasma from cells is how long? - Answer ️️ -2.0 hours from time of collection All of the following are a reason for transporting tubes with the stoppers up EXCEPT which of the following? - Answer ️️ -Maintains the sterility of the sam