Acute gastroenteritis: Difference between revisions

(Noninvasive chart)
(viral, staph)
Line 11: Line 11:
! Species!! Onset !! Symptoms !! Transmisison !! Preformed Toxin
! Species!! Onset !! Symptoms !! Transmisison !! Preformed Toxin
|-
|-
| Viral || Example || Example || Example || No
| Viral  
|| 11-72 hrs
||  
*Nausea, vomiting, watery diarrhea
*Mild abd cramps, myalgia
||  
*Fecal-oral
*Contaminated food or water
|| No
|-
|-
| [[S. aureus|Staph]]|| Example || Example || Example || Yes
| [[S. aureus|Staph]]
|| 1-6 hrs
||  
*Nausea, severe vomiting, diarrhea,
*Mild abd cramping
||  
*Previously cooked foods (mayonaise, ham, salads)
|| Yes
|-
|-
| [[Bacillus cereus|B. cereus]]|| Example || Example || Example || Yes
| [[Bacillus cereus|B. cereus]]|| 1-6 hrs|| Example || Example || Yes
|-
|-
| [[Clostridium (not difficile)|C. perfringens]]|| Example || Example || Example || Yes
| [[Clostridium (not difficile)|C. perfringens]]|| 8-24 hrs|| Example || Example || Yes
|-
|-
| [[Vibrio cholera|V. cholerae]]|| Example || Example || Example || No
| [[Vibrio cholera|V. cholerae]]|| 11-72 hrs ||  
*Fecal-oral
*Contaminated food or water
|| Example || No
|-
|-
| [[Giardia]]|| Example || Example || Example || No
| [[Giardia]]|| 1-4 wks|| Example || Example || No
|}
|}



Revision as of 05:25, 31 October 2015

Background

  • Blood diarrhea suggests bacterial etiology
  • Viral AGE usually lasts <7d
  • Do not dx isolated vomiting as AGE

Causes

Noninvasive AGE
Species Onset Symptoms Transmisison Preformed Toxin
Viral 11-72 hrs
  • Nausea, vomiting, watery diarrhea
  • Mild abd cramps, myalgia
  • Fecal-oral
  • Contaminated food or water
No
Staph 1-6 hrs
  • Nausea, severe vomiting, diarrhea,
  • Mild abd cramping
  • Previously cooked foods (mayonaise, ham, salads)
Yes
B. cereus 1-6 hrs Example Example Yes
C. perfringens 8-24 hrs Example Example Yes
V. cholerae 11-72 hrs
  • Fecal-oral
  • Contaminated food or water
Example No
Giardia 1-4 wks Example Example No
Invasive AGE
Species Onset Symptoms Transmission
Salmonella 6-72 hours
  • Eggs
  • Poultry
  • Water
  • Reptiles
Shigella 1-3 days
  • Food
  • Fecal-Oral
Yersinia 1-5 days
  • Water
  • Milk
  • Pork
  • Wild Animals
  • Fecal-Oral
Campylobacter 1-7 days
  • Water
  • Poultry
  • Pets/Animals
C. Diff 1-11 Weeks
  • Copious FOUL diarrhea
Entamoeba 1-11 weeks
  • Water
  • Sanitation
  • Travel

Clinical Features

Differential Diagnosis

Diffuse Abdominal pain

Diagnosis

  • Assess hydration status
    • Cap refill, skin turgor, resp rate
  • Consider stool labs if:

Treatment

  1. Oral rehydration therapy
    • 30mL(1oz)/kg/hr
  2. Antiemetic
  3. Antibiotics

Disposition

See Also

References