Acute gastroenteritis: Difference between revisions
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*Blood diarrhea suggests bacterial etiology | *Blood diarrhea suggests bacterial etiology | ||
*Viral AGE usually lasts <7d | *Viral AGE usually lasts <7d | ||
*Do not | *Do not diagnosis isolated vomiting as AGE | ||
===Causes=== | ===Causes=== | ||
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*Nausea, vomiting, watery diarrhea | *Nausea, vomiting, watery diarrhea | ||
*Mild | *Mild abdominal cramps, myalgia | ||
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*Fecal-oral | *Fecal-oral | ||
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*Nausea, severe vomiting, diarrhea, | *Nausea, severe vomiting, diarrhea, | ||
*Mild | *Mild abdominal cramping | ||
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*Previously cooked foods (mayonaise, ham, salads) | *Previously cooked foods (mayonaise, ham, salads) | ||
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| [[Vibrio cholera|V. cholerae]]|| 11-72 hrs || | | [[Vibrio cholera|V. cholerae]]|| 11-72 hrs || | ||
*Explosive rice-water diarrhea | *Explosive rice-water diarrhea | ||
*Vomiting, | *Vomiting, abdominal cramps | ||
*Fever | *Fever | ||
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{{Abdominal Pain DDX Diffuse}} | {{Abdominal Pain DDX Diffuse}} | ||
== | ==Evaluation== | ||
*Assess hydration status | *Assess hydration status | ||
**Cap refill, skin turgor, | **Cap refill, skin turgor, respiratory rate | ||
*Consider stool labs if: | *Consider stool labs if: | ||
**>10 stools in previous 24hr | **>10 stools in previous 24hr | ||
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**Bloody stool | **Bloody stool | ||
**Persistent diarrhea | **Persistent diarrhea | ||
**HIV / immunosuppressed | |||
==Management== | ==Management== | ||
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#*[[Ondansetron]] 0.15mg/kg/dose IV/PO | #*[[Ondansetron]] 0.15mg/kg/dose IV/PO | ||
#[[Antibiotics]] | #[[Antibiotics]] | ||
#*Only consider in | #*Only consider in patients with invasive infection | ||
#**[[Shigella]], [[campylobacter]], [[E. coli]], [[yersinia]], [[vibrio]] | #**[[Shigella]], [[campylobacter]], [[E. coli]], [[yersinia]], [[vibrio]] | ||
#**Bloody stool with mucus and fever | #**Bloody stool with mucus and fever | ||
#*NOT indicated for E. coli O157:H7 | #*NOT indicated for [[E. coli]] O157:H7 | ||
#*NOT routinely indicated for salmonella | #*NOT routinely indicated for salmonella | ||
#**Exceptions: SCD, [[IBD]], <3mo | #**Exceptions: SCD, [[IBD]], <3mo | ||
#*[[Azithromycin]] (able to tolerate PO) | #*[[Azithromycin]] (able to tolerate PO) | ||
#*OR [[ciprofloxacin]] | #*'''OR''' [[ciprofloxacin]] | ||
#*OR [[TMP-SMX]] | #*'''OR''' [[TMP-SMX]] | ||
#*[[Ceftriaxone]] (parenteral) | #*[[Ceftriaxone]] (parenteral) | ||
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*[[Nausea and Vomiting]] | *[[Nausea and Vomiting]] | ||
*[[Acute gastroenteritis (peds)]] | *[[Acute gastroenteritis (peds)]] | ||
*[[Dehydration]] | *[[Dehydration]] | ||
*[[Acute diarrhea]] | *[[Acute diarrhea]] | ||
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[[Category:GI]] | [[Category:GI]] | ||
Revision as of 14:52, 31 May 2017
See Acute gastroenteritis (peds) for pediatric patients
Background
- Blood diarrhea suggests bacterial etiology
- Viral AGE usually lasts <7d
- Do not diagnosis isolated vomiting as AGE
Causes
Species | Onset | Symptoms | Transmisison | Preformed Toxin |
---|---|---|---|---|
Viral (norovirus, adenovirus, rotavirus) | 11-72 hrs |
|
|
No |
Staph | 1-6 hrs |
|
|
Yes |
B. cereus | 1-6 hrs |
|
|
Yes |
C. perfringens | 8-24 hrs |
|
|
Yes |
V. cholerae | 11-72 hrs |
|
|
No |
Giardia | 1-4 wks |
|
|
No |
Species | Onset | Symptoms | Transmission |
---|---|---|---|
Salmonella | 6-72 hours |
|
|
Shigella | 1-3 days |
|
|
Yersinia | 1-5 days |
|
|
Campylobacter | 1-7 days |
|
|
C. Diff | 1-11 Weeks |
|
|
Entamoeba | 1-11 weeks |
|
Clinical Features
- Vomiting/diarrhea
- Crampy/diffuse abdominal pain
Differential Diagnosis
Diffuse Abdominal pain
- Abdominal aortic aneurysm
- Acute gastroenteritis
- Aortoenteric fisulta
- Appendicitis (early)
- Bowel obstruction
- Bowel perforation
- Diabetic ketoacidosis
- Gastroparesis
- Hernia
- Hypercalcemia
- Inflammatory bowel disease
- Mesenteric ischemia
- Pancreatitis
- Peritonitis
- Sickle cell crisis
- Spontaneous bacterial peritonitis
- Volvulus
Evaluation
- Assess hydration status
- Cap refill, skin turgor, respiratory rate
- Consider stool labs if:
- >10 stools in previous 24hr
- Travel to high-risk country
- Fever
- Bloody stool
- Persistent diarrhea
- HIV / immunosuppressed
Management
- Rehydration (PO preferred)
- 30mL(1oz)/kg/hr
- Antiemetic
- Ondansetron 0.15mg/kg/dose IV/PO
- Antibiotics
- Only consider in patients with invasive infection
- Shigella, campylobacter, E. coli, yersinia, vibrio
- Bloody stool with mucus and fever
- NOT indicated for E. coli O157:H7
- NOT routinely indicated for salmonella
- Exceptions: SCD, IBD, <3mo
- Azithromycin (able to tolerate PO)
- OR ciprofloxacin
- OR TMP-SMX
- Ceftriaxone (parenteral)
- Only consider in patients with invasive infection
Disposition
- Most can be discharged
- Admit
- Unable to tolerate PO
- Hemodynamic instability
- Significant comorbidities