COMSAE Cramming EXAM QUESTIONS WITH
CORRECT ANSWERS
Most exotoxins are heat (labile/stabile) - AnswerLabile
/.Which exotoxins are heat stabile? - AnswerS. aureus and B. cerus (enterotoxin, food
poisoning, no antibiotic treatment)
/.Neisseria meningitis is a gram ___ _____ - Answernegative diplococci, obligate
intracellular
/.Bacteroides fragilis is a gram _____ strict ____ and causes _____ - AnswerGram
negative strict anaerobe and causes pelvic or bowl abscess.
Tx: metronidazole or clindamycin + surgical drainage
/.Culture Media: Gonorrhea - AnswerThayer-Martin (chocolate)
/.H. influenza - AnswerChocolate
/.C. diphtheria - AnswerLoffler's + Tellurite
/.Bordetella pertussis - AnswerBordet-Gengou (Potato extract)
/.M. tuberculosis - AnswerLoweenstein-Jensen agat
/.Legionella - AnswerCharcoal yeast extract agar
/.Mycoplasma pneumoniae - AnswerEaton's agar (provides sterols)
/.Fungi - AnswerSabouraud's agar (contains peptides)
/.E. Coli - AnswerEMB - eosin - methylene blue green metallic colonies
/.Lactose fermenting bacteria (enterobacter, klebsellia) - AnswerMacConkey's
(decreased pH produces pink colonies)
/.Strep Pneumoniae is a gram ___, ______ shaped, _______ with a ______ -
AnswerGram 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 - AnswerBartonella, treat with azithro, DO NOT ASPIRATE
, /.Cat bite organism - AnswerPaseurella
/.Cat Poop - AnswerToxo gondii
/.Most common bacterial STD in US? - AnswerChlamydia
/.Rose spots on belly, constipation and diarrhea, gram negative motile bacteria with
FLAGELLA and lactose non-fermenter (produces sulfide) .... what is it? -
AnswerSalmonella typhoid/typhoid fever
Treat with ceftriaxone
Treat carriers with cipro or ampicillin
Resists phagocytosis via Vi polysaccharide
/.Rickettsia treatment for over 8yo - AnswerDoxycycline
/.Rickettsia treatment when pregnant - AnswerChloramphenicol
/.Rickettsia treatment under 8 yo - AnswerAmoxicillin
/.Rash on palm and soles which spreads to trunk, meningoencephalitis, renal failure -
related to dog tick (dermacentor) - AnswerRickettsia rickettssii (Rocky Mountain Spotted
Fever)
/.Endemic typhus, spread by body louse, rash on trunk that spreads peripherally,
maculopapular petechiae, common in homeless - AnswerRickettsia prowazekii
/.Endemic typhus (murine typhus), fleas on rats, discrete rash after six days -
AnswerRicketssia typhi
/.Q fever, a type of rickettsia, seen in cattle farmers, severe onset fever and dry cough
but NO RASH - AnswerCoxiella burnetii
/.Thumb print sign, drooling in child, sniffing position = - Answerepiglottis
/.Reactive arthritis associated with urethritis, cervicitis, and conjunctivitis (most
commonly chlamydia or shigella related) - AnswerReiter's Syndrome
/.Infection localized to lymphatic tissues, presents as cervical lyphadenitis in children,
cured by excision and chemotherapy - AnswerMycobacterium scrofulaceum
/.Treatment for non-healing skin ulcer on hands following trauma in a patient who works
around fish/fish tanks - AnswerFishtank granulomoa, mycobacterium marinum, treat
with rifampin and ethambutol
CORRECT ANSWERS
Most exotoxins are heat (labile/stabile) - AnswerLabile
/.Which exotoxins are heat stabile? - AnswerS. aureus and B. cerus (enterotoxin, food
poisoning, no antibiotic treatment)
/.Neisseria meningitis is a gram ___ _____ - Answernegative diplococci, obligate
intracellular
/.Bacteroides fragilis is a gram _____ strict ____ and causes _____ - AnswerGram
negative strict anaerobe and causes pelvic or bowl abscess.
Tx: metronidazole or clindamycin + surgical drainage
/.Culture Media: Gonorrhea - AnswerThayer-Martin (chocolate)
/.H. influenza - AnswerChocolate
/.C. diphtheria - AnswerLoffler's + Tellurite
/.Bordetella pertussis - AnswerBordet-Gengou (Potato extract)
/.M. tuberculosis - AnswerLoweenstein-Jensen agat
/.Legionella - AnswerCharcoal yeast extract agar
/.Mycoplasma pneumoniae - AnswerEaton's agar (provides sterols)
/.Fungi - AnswerSabouraud's agar (contains peptides)
/.E. Coli - AnswerEMB - eosin - methylene blue green metallic colonies
/.Lactose fermenting bacteria (enterobacter, klebsellia) - AnswerMacConkey's
(decreased pH produces pink colonies)
/.Strep Pneumoniae is a gram ___, ______ shaped, _______ with a ______ -
AnswerGram 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 - AnswerBartonella, treat with azithro, DO NOT ASPIRATE
, /.Cat bite organism - AnswerPaseurella
/.Cat Poop - AnswerToxo gondii
/.Most common bacterial STD in US? - AnswerChlamydia
/.Rose spots on belly, constipation and diarrhea, gram negative motile bacteria with
FLAGELLA and lactose non-fermenter (produces sulfide) .... what is it? -
AnswerSalmonella typhoid/typhoid fever
Treat with ceftriaxone
Treat carriers with cipro or ampicillin
Resists phagocytosis via Vi polysaccharide
/.Rickettsia treatment for over 8yo - AnswerDoxycycline
/.Rickettsia treatment when pregnant - AnswerChloramphenicol
/.Rickettsia treatment under 8 yo - AnswerAmoxicillin
/.Rash on palm and soles which spreads to trunk, meningoencephalitis, renal failure -
related to dog tick (dermacentor) - AnswerRickettsia rickettssii (Rocky Mountain Spotted
Fever)
/.Endemic typhus, spread by body louse, rash on trunk that spreads peripherally,
maculopapular petechiae, common in homeless - AnswerRickettsia prowazekii
/.Endemic typhus (murine typhus), fleas on rats, discrete rash after six days -
AnswerRicketssia typhi
/.Q fever, a type of rickettsia, seen in cattle farmers, severe onset fever and dry cough
but NO RASH - AnswerCoxiella burnetii
/.Thumb print sign, drooling in child, sniffing position = - Answerepiglottis
/.Reactive arthritis associated with urethritis, cervicitis, and conjunctivitis (most
commonly chlamydia or shigella related) - AnswerReiter's Syndrome
/.Infection localized to lymphatic tissues, presents as cervical lyphadenitis in children,
cured by excision and chemotherapy - AnswerMycobacterium scrofulaceum
/.Treatment for non-healing skin ulcer on hands following trauma in a patient who works
around fish/fish tanks - AnswerFishtank granulomoa, mycobacterium marinum, treat
with rifampin and ethambutol
