Certification Exam Questions With Verified Answers.

Certification Exam Questions With Verified Answers. When handling blood spots, one should A. be even more careful when handling blood than other body fluids. B. protect from cross contamination from other blood spots C. store at room temperature up to 24 hours D. store at 4 degrees C for up to 7 years - answerB. protect from cross contamination from other blood spots In handling blood serum, one should A. store in eppendorf tube in refrigerator indefinitely B. separate from cells and freeze serum immediately C. collect in heparin tube to yield higher quantity of DNA - answerB. separate from cells and freeze serum immediately How many mL of amniotic fluid are required for PCR-based tests? A. 1 mL B. 3 mL C. 10 mL D. 20 mL - answerC. 10 mL Buccal cells A. can be shipped by regular mail or overnight B. must be shipped overnight C. must be received in the lab within one hour of being collected D. none of the above - answerA. can be shipped by regular mail or overnight Hair bulbs are poor samples for: A. DNA studies B. RNA studies C. Paternity tests D. Forensic tests - answerB. RNA studies What data must be recorded to track patient from accession to final report? A. requesting physician B. test requested C. special requests D. all of the above - answerA. requesting physician B. test requested C. special requests Which of the following anticoagulants are recommended for tests requiring plasma or bone marrow aspirate samples? A. ACD B. EDTA C. Heparin D. A & B - answerD. A & B What is the maximum number of times that plasma specimens may be frozen and thawed? A. As many times as you want as long as you do it quickly B. only once C. up to 3 times D. up to 4 times - answerC. up to 3 times When preparing chunks of tissue for RNA extraction, you should _______. A. store at 4 degrees Celcius B. store at 8 degrees Celsius C. snap freeze D. refrigerate - answerC. snap freeze Specimens collected in heparin are NOT acceptable because: