Blood Bank Chapter 14 Questions

1. Which disease has the highest potential for transmis- D hepatitis sion through transfusion? a. AIDS b. syphillis c. CMV d. Hepatitis 2. Select the method used for donor syphilis screening. D RPR (rapid plasma reagin) A. PCR B. chemiluminescent assay C. hemagglutination D. RPR 3. What characteristic is associated with HTLV-I/II? d all of the above A. an oncornavirus B. found in patients with tropical spastic paraparesis C. associated with adult T-cell leukemia D. all of the above 4. What marker shows a previous exposure to hepatitis B B. anti-HBc that remains in convalescence? A. anti-HCV B. anti-HBc C. anti-HAV D. HBsAg 5. Which of the following is the confirmatory test for a positive anti-HIV screen? 1/3 A HIV-RNA A. HIV-RNA B. RIBA C. PCR D. Southern blot 6. Which of the following conditions requires a thorough B CJD donor history because it is a not a routinely tested disease? A. syphilis B. CJD C. hepatitis C D. HTLV-1 7. What is the donation status of a donor who is a confirmed positive for HBsAg? D A. temporarily deferred B. deferred if the antibody to HBc is also present c. deferred if ALT is elevated D. permanently deferred 8. A repeat donor tests positive with HBV NAT. this indi- B vidual donated whole blood 2 months previously. At the prior donation, the HBV NAT was negative. What process should be implemented at once? A. confirmatory testing B. look-back C. donor deferral D. AABB notiication A 9. 2/3 A donors anti-HLTV I/II test is reactive upon first testing. The sample is repeated in duplicate. Both repeat tests are nonreactive. What is the final interpretation of this donors anti-HLTV-I/II tests? A. negative B. Positive C. requires confirmation D. indeterminate 10. Select the test not performed routinely on a donor unit. C A. ABO/Rh type B. antibody screen C. DAT D. HCV 11. Measures the emission of light from an excited electron E Chemiluminescent immunoassay 12. Detects infectious agent before the appearance of an- D. NAT (nucleic acid testtibodies ing) 13. False-positive test results from pregnancy , viral infec- B. RApid reagin test tions, and autoimmune diseases 14. Uses horseradish peroxidase (HRP) as a conjugate c.. ELISA e. Chemiluminescent immunoassay 15. Implementation has decreased the window period for D. NAT (nucleic acid test) infectious diseases 3/3