Part 9 HIV Multiple choice questions

41q: infusion of which of the following has the least chance of transmitting HIV infection?


a. whole blood
b. packed RBC
c. platelets
d. leucocytes
e. plasma
f. clotting factor concentrates

answer f . clotting factors . the chance of infection of a hemophiliac via clotting factor concentrates has essentially been eliminated because of the added layer of safety resulting from heat treatment of the concentrates

42q: It is currently estimated that the risk of infection with HIV in the united states via transfused screened blood is approximately how much ?


a. 10 in 1.5 million donations
b. 20 in 1.5 million donations
c. 5 in 1.5 million donations
d. 1 in 1.5 million donations

answer d . 1 in 1.5 million donations

43q: despite the best efforts of science, among the approximately 15 million donations collected in the united states each year , about 10 HIV infectious donations are available for transfusion . why does this happen ?


Answer: This happens because the current technology cannot detect HIV RNA for the first 1-2 weeks due to low levels of viremia .


44q: Large, multi-institutional studies have indicated that the risk of HIV transmission following skin puncture from a needle or a sharp object that was contaminated with blood from a person with documented HIV infection is ?


a. Approximately 0.3 %
b. Approximately 0.09 %
c. Approximately 1 %
d. Approximately 0.01 %

answer a . approximately 0.3 %

45q: Large, multi-institutional studies have indicated that the risk of HIV transmission after a mucous membrane exposure to HIV infected blood is ?


a. Approximately 0.3 %
b. Approximately 0.09 %
c. Approximately 1 %
d. Approximately 0.01 %

answer b . approximately 0.09 %