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ch. 30 questions
Bacterial Diseases of the Urogenital Tract
Question | Answer |
---|---|
What is the reservoir of the Neisseria gonorrhoeae? | humans are the only source |
what are the gram reactivity and morphology of Neisseria? | bean-shaped pairs of cocci of Neisseria are gram-negative |
How is gonorrhea diagnosed? | dx as infectious with oxidase-pos., gram-neg, diplococci from urethral exudate and species confirmed by sugar fermentation tests |
How is gonorrhea treated and prevented? | tx--penicillin/cephtriaxone--risk decreases with use of condoms--no vaccine |
How does N. gonorrhoeae overcome the flushing mechanism produced by urine flow? | use of pili holdfasts |
Describe the shape, motility, and transmission of treponema pallidum | coiled, spiral-shaped, highly motile, and sexually transmitted |
Primary stage of syphilis | pt exhibits chancre full of organisms |
Secondary stage of syphilis | rash on palms and feet with fluid full of organisms |
Tertiary stage of syphilis | years after initial inf, pt suffers from gumma--distruction of soft tissue of bone, heart, brain internal viscera, etc--absence of bacteria |
How is syphilis treated? | with penicillin in first two stages, antibacterials useless during tertiary stage |
what is general paresis? | approx 20 yrs after syphilis inf. general group of mental illnesses--dementia--emotional instability, memory loss, impaired judgment, delusions, hallucinations, loss of vision, eye damage, speech defects |
How often is chlamydial infection asymptomatic? | 70% of females and 30% of males |
Where must drugs travel to be effective against Chlamydia? | drugs must penetrate into host cell, then into inclusion body, finally into bacteria to be effective against Chlamydia |