Cost-eﬀective screening test for determining HIV status

Question 1: The most cost-eﬀective screening test for determining HIV status is which of the following?

Western Blot
Enzyme-linked immunosorbent assay (ELISA)
Venereal Disease Research Laboratory (VDRL) test
Viral load

Question 2: Which blood test is a nonspecific method and most helpful for evaluating the severity and course of an inflammatory process?

Erythrocyte sedimentation rate (ESR)
White blood cell (WBC) count
Polymorphonuclear cells (PMN)
C-reactive protein (CRP)

Question 3: Cocaine acts as a stimulant by blocking the reuptake of which neurotransmitter?

Gamma-aminobutyric acid (GABA)
Acetylcholine
Dopamine
Serotonin