Urinary anti-infectives are used only to treat urinary tract infections (UTIs). What causes urinary anti-infectives to be so effective in treating UTIs?
A) They sterilize feces.
B) They act specifically within the urinary tract.
C) They reach high plasma levels in a short period of time.
D) They are excreted through the liver.
B
Feedback:
Urinary tract anti-infectives act specifically within the urinary tract to destroy bacteria, either through a direct antibiotic effect or through acidification of the urine. They are not used in systemic infections because they do not attain therapeutic plasma levels. These drugs are usually excreted through the kidneys not through the liver, and they do not sterilize feces.
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