Vomiting
Diarrhea
100

Outbreaks in daycares, long term care facilities, homes; peaks in 12-48 hours; fever, diarrhea, myalgia,  mild pain, abrupt vomiting

Acute viral gastroenteritis

100

non-bloody, watery loose stools, explosive, vomiting, low grade fever

Acute Viral Gastroenteritis

200

poor food handling technique, contact with ill family member, peaks early and resolves in 1-7 days

Norovirus, adenovirus, rotavirus

200

high yield in 6-10 year olds, Acute watery diarrhea; mucus and blood may be present, may have URI, Yellow or green stool may have undigested food

Shigella bacteria

300

Post GI surgery, frequent NSAID/caffiene/etoh, obesity, H. Pylori, postprandial or nocturnal vomiting, esophageal burning, heartburn, wheezing, coughing, 

Gastritis/peptic ulcer/GERD

300

young and middle age woment most common, intermittent diarrhea, chronic (sx for like 3 months), Loose, watery diarrhea. Abd pain LLQ but can occur anywhere. Rectal urgency, distention. Abd tender on palpation.

IBS

400

females of childbearing age, before week 22, dehydration, weight loss, vomiting before breakfast, associated with hyperthyroidism, DM, psychiatric

Pregnancy/hyperemesis

400

!! Red Flag !!

h/o hospitalization, antibiotic use, commonly >65 YO;

Mild, watery diarrhea, crampy abdominal pain, low fever, distinctive foul sweet manure like smell

C Diff

500

!! RED FLAG !!

abdominal distention, tympany, dehydration, fever, abdominal pain, tachycardia, hypotension, poor oral intake

Small bowel obstruction

600

!! RED FLAG !!

<15 YO first onset of DM1, African American, obesity, low income, housing or food insecure

Altered Mental Status, kussmauls, nausea, vomiting, abdominal pain, polyuria, polydypsia

Diabetic Ketoacidosis. (DKA)