A 23-year-old sexually active female presents with white copious discharge and itch and is diag-nosed with yeast vaginitis. This condition is caused by overgrowth of which microorganism?
a. Escherichia coli
b. Lactobacillus acidophilus
c. Candida albicans
d. Neisseria gonorrhoeae
ANS: C
The most common cause of yeast vaginitis is Candida albicans. Changes in the vaginal pH may predispose a woman to such an infection by destroying normal vaginal flora, facilitating over-growth of Candida albicans and causing a yeast infection. E. coli does not cause yeast vaginitis nor does Lactobacillus acidophilus. Neisseria gonorrhoeae is the cause of gonorrhea.
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