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COMSAE Cramming EXAM QUESTIONS WITH CORRECT ANSWERS
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COMSAE Cramming EXAM QUESTIONS WITH CORRECT ANSWERS
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COMSAE Cramming EXAM QUESTIONSWITH CORRECT ANSWERS
Most exotoxins are heat (labile/stabile) - Answers -Labile
Which exotoxins are heat stabile? - Answers -S. aureus and B. cerus (enterotoxin, food
poisoning, no antibiotic treatment)
Neisseria meningitis is a gram ___ _____ - Answers -negative diplococci, obligate
intracellular
Bacteroides fragilis is a gram _____ strict ____ and causes _____ - Answers -Gram
negative strict anaerobe and causes pelvic or bowl abscess.
Tx: metronidazole or clindamycin + surgical drainage
Culture Media: Gonorrhea - Answers -Thayer-Martin (chocolate)
H. influenza - Answers -Chocolate
C. diphtheria - Answers -Loffler's + Tellurite
Bordetella pertussis - Answers -Bordet-Gengou (Potato extract)
M. tuberculosis - Answers -Loweenstein-Jensen agat
Legionella - Answers -Charcoal yeast extract agar
Mycoplasma pneumoniae - Answers -Eaton's agar (provides sterols)
Fungi - Answers -Sabouraud's agar (contains peptides)
E. Coli - Answers -EMB - eosin - methylene blue green metallic colonies
Lactose fermenting bacteria (enterobacter, klebsellia) - Answers -MacConkey's
(decreased pH produces pink colonies)
Strep Pneumoniae is a gram ___, ______ shaped, _______ with a ______ - Answers -
Gram positive, lancet-shaped, diplococci with a capsule
Causes adult bacterial meningitis and community acquired PNA
Secretes IgA proteases
Optochin-sensitive
, Alpha hemolytic
Virulence factor - capsule
Cat scratch organism - Answers -Bartonella, treat with azithro, DO NOT ASPIRATE
Cat bite organism - Answers -Paseurella
Cat Poop - Answers -Toxo gondii
Most common bacterial STD in US? - Answers -Chlamydia
Rose spots on belly, constipation and diarrhea, gram negative motile bacteria with
FLAGELLA and lactose non-fermenter (produces sulfide) .... what is it? - Answers -
Salmonella typhoid/typhoid fever
Treat with ceftriaxone
Treat carriers with cipro or ampicillin
Resists phagocytosis via Vi polysaccharide
Rickettsia treatment for over 8yo - Answers -Doxycycline
Rickettsia treatment when pregnant - Answers -Chloramphenicol
Rickettsia treatment under 8 yo - Answers -Amoxicillin
Rash on palm and soles which spreads to trunk, meningoencephalitis, renal failure -
related to dog tick (dermacentor) - Answers -Rickettsia rickettssii (Rocky Mountain
Spotted Fever)
Endemic typhus, spread by body louse, rash on trunk that spreads peripherally,
maculopapular petechiae, common in homeless - Answers -Rickettsia prowazekii
Endemic typhus (murine typhus), fleas on rats, discrete rash after six days - Answers -
Ricketssia typhi
Q fever, a type of rickettsia, seen in cattle farmers, severe onset fever and dry cough
but NO RASH - Answers -Coxiella burnetii
Thumb print sign, drooling in child, sniffing position = - Answers -epiglottis
Reactive arthritis associated with urethritis, cervicitis, and conjunctivitis (most commonly
chlamydia or shigella related) - Answers -Reiter's Syndrome
Infection localized to lymphatic tissues, presents as cervical lyphadenitis in children,
cured by excision and chemotherapy - Answers -Mycobacterium scrofulaceum
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