A laboratory technologist splashed a blood specimen onto his face, eyes, nose, and mouth. This specimen was from an HIV positive patient. If this blood exposure leads to HIV infection in the technologist, the transmission route is

A) Direct
B) Droplet nuclei
C) Vehicle
D) Aerosol
E) Fomite


C) Vehicle

Biology & Microbiology

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The best anticoagulant to prevent clotting of specimens, such as blood, bone marrow, and synovial fluid, which are submitted for recovery of all types of microorganisms, is:

a. sodium polyanethol sulfonate (SPS). b. heparin. c. citrate. d. ethylenediaminetetraacetic acid (EDTA).

Biology & Microbiology

Blood pH is kept near a value of 7.3 - 7.5 because of ____

a. salts b. buffers c. acids d. bases

e. water

Biology & Microbiology

In terms of evolutionary history, which phylum contains fungi that were the first to diverge from the rest of the fungi?

a. Chytridiomycota b. Ascomycota c. Glomeromycota d. Zygomycota

Biology & Microbiology

Chromosomal islands have which of the following properties?

a. may be responsible for differences between strains of the same species b. may be flanked by inverted repeats c. may contain virulence factors d. all of the above

Biology & Microbiology