20.
Penicillin G is generally least effective against which of the following?
a. Gram-negative bacilli.
b. Gonococci (cause of gonorrhea).
c.
Pneumococci.
d. Streptococci.
21.
The penicillin best suited for use in the long-term prophylaxis of rheumatic fever is:
a. Benzathine penicillin G.
b. Procaine penicillin G suspension.
c.
Potassium penicillin G.
d. Penicillin V.
22.
An advantage of ampicillin is its:
a. Natural derivation.
b. Long duration of action.
c.
d. Effectiveness against many gram-negative bacteria.
23.
An advantage of methicillin and oxacillin is their:
a. Natural derivation.
b. Long duration of action.
c.
d. Effectiveness against many gram-negative bacteria.
MD0913
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