COMSAE Cramming Exam Questions With Verified Answers

COMSAE Cramming Exam Questions With Verified 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