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17 Cards in this Set
- Front
- Back
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Acute pyelonephritis etiologic agent |
An ascending infection Usually caused by E. coli, Klebsiella, Proteus, and other G neg orgs (4x risk in DM) |
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Renal corticomedullary etiology |
Ascending infection Multiple foci of infection leading to chronic inflammation and abscess formation |
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Predisposing conditions for renal corticomedullary abscesses |
Old infections with scarring Kidney stones Urine reflux (abnormal anatomy) |
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Tx of renal corticomedullary abscesses |
Abx Drain (if not responding in 7 days, very large, persistent fever, or any evidence of obstruction) Relieve urinary obstruction |
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Etiology of renal carbuncle |
Hematogenous spread- Staph Aureus |
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Etiology of perinephric abscess |
Starts as an ascending infection- extends from kidney to the surrounding perinephric space (Gerona's fascia) -G neg bacilli, enterococci, occasional fungi |
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Tx of perinephric abscess |
Must be drained! Abx can't penetrate well into this area |
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___% of persons with necrotizing fasciitis are diabetics |
25% |
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What causes the dusky skin coloring seen in necrotizing fasciitis? |
Destruction of veins and nerves due to the location of the infection |
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Treatment of necrotizing fasciitis |
SURGICAL EXPLORATION STAT! IV abx (Clindamycin + PCN) |
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Agents causing necrotizing fasciitis |
Mixed infection (aerobic + anaerobic) in 90% -Usually Group A Strep, Staph Aureus, +/- anaerobes |
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What is Fornier's Gangrene? |
Necrotizing Fasciitis in male genitals (involves penis, scrotum, & perineum, but spares the testicles- separate blood supply) Same etiologic agents as necrotizing fasciitis |
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Anaerobic cellulitis, PE findings, and etiology |
Starts in the SQ tissues, later seen on the skin Red/blackened skin Clostridium perfringens |
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What is Pyomyositis? PE findings? |
Deep infection involving muscles that have recently undergone trauma (rare; seen more in tropical areas) PE: woody skin, then pus pockets, then entire muscle filled w/ pus
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Etiology of pyomyositis, tx |
Staph aureus (90%) Streptococci (10%) Tx: surgical intervention & IV abx |
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Most common infections in diabetics |
Foot infections |
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Common etiologic agents of diabetic foot infections (uncomplicated vs complicated) |
Uncomplicated: Staph aureus, strep Complicated: Mixed |
