Diarrhea Flashcards
Definition of acute Diarrhea
> 3 stools per day for <2 weeks
Stools are looser and more frequent than baseline
Definition of Chronic Diarrhea
Frequent and looser stools >4 weeks
DDX. acute diarrhea in the general population
Infectious Early chronic -IBS -IBD -Thyroid -Maldigestion -Neoplastic
DDx for the infectious acute diarrheas
Parasites -Amoebiasis -Giardia Bacterial -C. Diff -Listeria -Shigella -Salmonella -Campylobacter Viral -Rotavirus -Norovirus -Hep A
DDX for infectious diarrhea in children
Campylobacter
Parvum
Cryptosporidia
Rotavirus
DDX for diarrhea in travelers
Norovirus Shigella Salmonella Campylobacter Giardia
DDX in the elderly
LESS LIKELY TO BE INFECTIOUS Ischemic bowel Diverticulitis Appendicitis Neoplasm Obstruction C. Diff if infectious
Risks for C. Diff
Healthcare Immunocompromised Older Previous C. Diff Recent antibiotics
Which antibiotics are most likely to give you c diff
Fluoroquinolones
Treatment for C. Diff
Vancomycin
2nd line=Metronidazole
Fidaxomycin
3rd line=Fecal transplant, monoclonal, or rifazamin
Physical exam for diarrhea
Vitals (orthostatic) JVP Cap refill Abdo exam DRE
Investigations for acute diarrhea
Maybe nothing Hb WBC Lytes Creat CRP Albumin FIT AXR
Red flags for diarrhea
Age >50 B symptoms Hematochezia Fever Arthritis Anorexia Nocturnal symptoms
When to hospitalize in the setting of diarrhea
Unrelenting fever Bloody diarrhea Dehydration Prgnant Immunocompromised Severe pain
Treatment Shigella, salmonella and E. coli
Cipro