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19 Cards in this Set
- Front
- Back
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Gram negative infection |
bacilli and anaerobes account for only 10-20% of infections in soft tisue and bone most commonly seen in those that are immune compromised, have poor blood supply or have unusual exposures |
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Cellulitis |
ecythma gangrenosum due to pseudomonas aeruginosa hot tub folliculitis with abscess following cat scratch accompanied with fever due to pasteurella multocida infectionB |
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Bite associated cellulitis |
animal = streptococcus and staph, pasteurella multocida, capnocytophaga canimorsus human = strep, staph, anaerobes, eikenella corrodens treatmnet = irrigation, vaccination for tetanus and prophylactiv Antis |
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cellulitis case 2 |
after eating oysters in an alcoholic VIBRIO VULNIFICUS exam presents with hemorhagic bullae on the extremities may progress to shock in patients with liver disease treat with 3rd generation cephalosporin or doxycycline |
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necrotizing fascitis |
older woman with DM, has fever and progressive rash on inner right thigh and vulva seen earlier with vulvar pruritis treated with fluid resusication, antibiotics, extensive surgery and reconstruction usually due to e. coli enterococcus, bacterocides |
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micro of NF |
group A strept Non group A strept mixed gram negatives anaerobes MRSA |
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Dx |
clinical; usually acute systemic toxicity painful or painless, erythema with swelling progresses to devitalization, and crepitus management; appropiate antibiotics, srugery debridement and amputation ASAP |
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Necrotizing myositis |
78 y.o. man presented with left elbow pain exam was unremarkable, several hours later severe pain, ecchymoses, blistering and crepitus of left elbow developed, he became hypotensive and unresponsive antibiotics were begun, had quarter amputation and survived blood cultures showed clostridium septicum c. septicum |
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Myositis from direct inoculation |
injection from steroids |
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Septic arthritis |
swelling in joints after developing fever rash and having long term unprotected intercourse neisseria gonorrhoeae, gram negative diplococci dissemintaed GC can cause tenosynovitis, dermatitis, polyarthralgia or polyarthritis |
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dx and rx |
culture of the synovial fluid has a sensitivity 20-50% culture or nucleic acid amplification of mucosal speicmen is more sensitive use antibiotics and joint drainage |
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Septic arthritis |
50% staph 20-25% streptococcus gram-negative 5% haemophilus 3% GC |
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Osteomyelitis |
bone infection secondary to hematogenous spread, long bones in kids, disc space to vertebral bodies in adults contiguous focus with diabetes foot infection penetating wounds |
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Osteomyelitis |
staphy gram negative bacili account for 10-20% via hematogenous spread salmonella species in children with sickle cell disease pseudomonas aeruginosa following puncture wounds of the foot significant minority of contigous focus (often mixed anaerobes, staphy, strepto infections mycobacteria |
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dx rx |
blood and bone culture treat with prolonged course og high dose antibiotics with surgical debridement if necessary |
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Lymphadenitits |
regional= local infection with lymphangitic spread, GAS, enteric GNR, rare, Bartonella henselae - cat scratch fever, francisella tularensis tularemia, bacillus anthracis - anthrax nocardia species generalized systemic infection viral infections or toxoplamosis |
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Cat scratch disease |
bartonella health 7 year old girl with swelling behind her left ear no systemic illness she had regular contact with cats and remembered being scratched 2 weeks earlier |
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Clinical cat scracth |
lymphadenopathy, papule heaptosplenic involvement fever of unknown origin dx with warthin starry silver stain treat with macolides doxy and fluroquinolones |
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Zoonosis |
dead rabbit ulcer on thumb francisella tularensis, tranmission via tick and deer bites in infected animales clinical mainfestation as ulceroglandular , glandular, oculoglandular and orophaynfeal |
