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COMLEX OBSCURE MICRO QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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COMLEX OBSCURE MICRO QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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COMLEX OBSCURE MICRO QUESTIONSAND ANSWERS WITH SOLUTIONS 2024
Serratia Marcesens - ANSWER GN rod
Assoc - Noscomial UTI, often drug resistant
Red Pigment
Tx - 2nd Gen Ceph - Cefoxitin, Cefaclor, Cefuroxime
"Think Red Maraschismo cherries"
Nocardia Asteroides - ANSWER GP aerobe
Acid Fast
Cultured on BCYE (Buffered Charcoal Yeast Extract (along with legionella))
Pulm infections in IC and cutaneous infections in normal trauma
Tx - Sulfonanmides
Leptospira Interrogans - ANSWER GN obligate aerobe spirochete
Found in water w/ animal urine, prevelant in surfers and tropics
Leptospirosis - mild flu, jaundice, photophobia with conjuctivitis
Weil's Disease - liver and kidney dysfunction; fever, hemorrhage, anemia, jaundice, azotemia
Bartonella Henselae - ANSWER GN rod/bacilli
Cat scratch disease - ascending lymphadenthapy in non-IC
Bacillary Angiomatosis - characterised by the proliferation of blood vessels, resulting in them forming
tumour-like masses in the skin and other organ, usually in IC
Tx - erythomycin, doxycycline (don't use tetras in <8)
Borrelia Recurrentis/hermsi - ANSWER Transmitted by louse
Relapsing fever due to variable surface antigens
Tx - tetracyclines
, Brucella spp - ANSWER Unpasteurized dairy
Undulant fever - fever that gets worse during the day, better by morning, cycles
Tx - tetracycline and rifampin
Coxiella burnetti - ANSWER Aerosols of cattle/sheep aminotic fluid
Q fever - Rickettsial like disease with NO rash
fever, mild pneumonia, can granulamtous hepatitis, GN endocarditis
Tx - Doxycycline, Azithromycin
Erlichia Chaffenis - ANSWER Lone Star Tick
Erlichiosis - NO rash, constitutional symptoms
Monocytes w/ morula (berry-like inclusions) in cytoplasm
Tx - doxycycline
Francisella Tularenias - ANSWER Rabbits, ticks
Tularemia- Ulceroglandular, pneumonia
Very virulent organism, potential bioterror agent
Tx - Gentamicin, Doxycycline
Pastuerlla Multicocida - ANSWER Animal bite, cats, dog
Cellulitis, osteomyelitis
Tx - Penicillin, doxy if allergic
Rickettsia Prowazekii - ANSWER Louse
ePidemic typhus - Rash starts centrally, spreads out, NO palms and soles
Tx- Doxycycline
Rickettsia Ricketsii - ANSWER Dermacentor Tick bite
Rocky Mountain Spotted Fever
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