CPAP ISBB questions and answers graded A+ 2023 passed

CPAP ISBB1. The production of antibodies by B cells is turned off by a. Cytotoxic T cells b. Helper T cells c. B lymphocytes d. Suppressor T cells d. Suppressor T cells 2. Which of the following cells recognize certain substances as "foreign" (nonself)? a. B lymphocytes b. T lymphocytes c. Macrophages d. Basophil a. B lymphocytes 3. One dimensional single electroimmunodiffusion is also known as a. Immunoelectrophoresis b. Counterimmunoelectrophoresis c. Radioimmunoassay d. Rocket electrophoresis d. Rocket electrophoresis 4. The system composed of antigens found primarily in Saliva and Plasma is: a. Lutheran b. Lewis c. Rh d. P b. Lewis 5. Anti-K is also known as: a. anti-K1 b. anti-McLeod c. Anti-Ku d. Anti-Cellano d. Anti-Cellano 6. What type of antigen is used in the RPR card test? a. Live treponemal organism b. Killed suspension of treponemal organisms c. Cardiolipin d. Tanned sheep cells c. Cardiolipin 7. Which is most likely a positive western blot result for infectious with HIV? a. Band at p24 b. Band at gp60 c. Bands at p24 and p31 d. Bands at p24 and gp120 d. Bands at p24 and gp120 8. Which antibody persist in low-level carrier of hepatitis B virus? a. IgM anti HBc b. IgG anti-HBc c. IgM anti-HBe d. IgG anti-HBs b. IgG anti-HBc 9. What blood type is not possible for an offspring of AO and BO mating? a. AB b. A or B c. O d. All are possible d. All are possible 10. What antibodies formed by a Bombay individual? a. Anti-A and anti-B b. Anti-H c. Anti-A, B d. Anti-A, B and H d. Anti-A, B and H 11. In which zone might an antibody-screening test be false negative? a. Prozone b. Zone of equivalence c. Postzone d. None of the above a. Prozone 12. The subclasses of IgG differ mainly in: a. The type of L chain b. The arrangement of disulfide bonds c. The ability to act as opsonins d. Molecular weight b. The arrangement of disulfide bonds 13. Which of the following is not an enhancement media that may be used in antibody screening and identification? a. Albumin b. LISS c. Normal saline d. Polyethylene glycol c. Normal saline 14. Most common anticoagulant used for apheresis procedures is: a. Heparin b. Sodium fluoride c. Warfarin d. Citrate d. Citrate 15. Most common adverse effect of plateletpheresis collection is: a. Allergic reaction b. Hepatitis c. Hemolysis d. Citrate effect d. Citrate effect 16. What is the most appropriate diluent for preparing a solution of 8% bovine albumin for red cell control reagent? a. Deionized water b. Distilled walter c. Normal saline d. Alsever solution c. Normal saline 17. What happens to an antibody in neutralization study when a soluble antigen is added to the test? a. Inhibition b. Dilution c. Complement fixation d. Hemolysis a. Inhibition