Of the following species, which are widely distributed in nature and hospital environments?
a. Pseudomonas luteola
b. Acinetobacter spp.
c. Pseudomonas oryzihabitans
d. Bordetella trematum
A 26-year-old woman has an odorous vaginal discharge, lower abdominal pain, and difficulty urinating. Vaginal secretions are collected and sent to the laboratory for examination 3 hours af-ter collection. No motile organisms are observed on the wet preparation; however, T. vaginalis is suspected. Which one of the following statements explains this discrepancy?
a. The infection is most likely bacterial; therefore a Gram stain should have been performed.
b. The specimen should have been refrige-rated before examination; consequently, the organism was compromised.
c. The time between collection and the mi-croscopic examination was prolonged, resulting in loss of motility.
d. No discrepancy is present; this organism in nonmotile.
The troph of the motile T. vaginalis organism measures 7 to 23 m long and 5 to 15 m wide. The recommended treatment of choice for this urogenital infection is:
a. tetracycline.
b. metronidazole.
c. penicillin.
d. ketoconazole.
The drug of choice for the treatment of granuloma inguinale, which is a major cause of genital ulcers in India, New Guinea, and part of South America, is:
a. clindamycin.
b. doxycycline.
c. imipenem.
d. gentamycin.
Trichomoniasis is the primary nonviral sexually transmitted disease worldwide. One complication of this infection is:
a. keratitis.
b. endometritis.
c. meningitis.
d. appendicitis.
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