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Infectious diarrhea1

causes of infectious diarrhea

QuestionAnswer
The most common etiology of infectious diarrhea Campylobacter: ingestion of contaminated food or water. Lasts 7-10 days, frequently bloody diarrhea, fecal RBC and WBCs. TX: Erythromycin
Affects hospitalized adult patients, recent treatment with antibiotics Clostridium Difficle, watch for toxic megacolon. Fever, abdominal pain, systemic toxicity possible. Fecal RBCs and WBCs, toxin in stools. Sigmoidoscopy-pseudomembranes. Tx: PO metronidazole or vancomycin. IV metro if can't do PO
Recent travel to developing countries, ingestion of contaminated food or water Entamoeba Histolytica: severe abdominal pain, fever. Fecal RBC and WBCs. Steroids lead to fatal perforation. Tx: Metronidazole
Ingestion of contaminated meat, HUS possible complication E.coli O157:H7- severe abd pain, low grade fever, vomiting. Fecal RBCs and WBCs. Tx: avoid antibiotic or antidiarrheal which increase HUS risk
Can cause invasive disease ie; Osteomyelitis in SS patients Salmonella: ingestion of contamimated poultry or eggs. lasts 2-5 days. Prodrome of HA, myalgia, fever, abd pain. Fecal WBCs. Bacteremia in 5-10% of pt. Tx bacteremic or at risk pt: oral quinolone or TMP-SMX
Transmitted by fecal-oral route, affects young children and insitutionalized pt. Shigella: Fecal RBCs and WBCs. Can cause febrile seizures in very young. Tx: TMP-SMX
Created by: srichardson