CIC exam questions with correct answers

Chain of Infection CORRECT ANSWER-1)Infectious agent= organism with ability to cause disease; greater virulence, invasiveness, and pathogenicity = increased odds of infection 2) Reservoir: place where microbes can persist and reproduce 3) Portal of Exit: way for microbe to leave the reservoir 4) Mode of transmission: method of microbe transfer from one place to another 5) Portal of entry: opening that allows microbe to enter host 6) Susceptible host: Lacks immunity or physical resistance to prevent invasion by microbe Is a circle; each link must be present in sequential order for infection to occur Virulence CORRECT ANSWER-Measure of microbe's ability to invade and create disease Depends on ability to: Survive in environment between hosts Transmit between hosts (moving; adherence) Proliferate IgM CORRECT ANSWER-Pentamer; primary response, short-lived (6 months); best at fixing complement IgG CORRECT ANSWER-Monomer; main blood antibody, secondary response; longer lived. opsonization and toxin neutralization. 4 subclasses Physical barriers CORRECT ANSWER-Skin; fever; secreted antimicrobials; innate immunity