Vomiting

Acute expulsion of gastric contents through the mouth vomiting should be differentiated from regurgitation especially in infants regurgitation in the involuntary and effortless expulsion  and small amounts of gastric contains.

Types of vomiting

1. Acute vomiting
1. Gastrointestinal
1. Gastroenteritis
2. Hepatitis
3. Appendicitis
4. Cholecystatis
5. Pancreatitis
6. Small intestinal abstraction
2. Non gastrointestinal
1. Infection Eg UTI
2. Meningitis
3. Encephalitis
4. Raised intracranil pressure
5. Drugs or toxin induced
2. Chronic vomiting
1. Gastrointestinal vomiting

1. Gastroesophageal reflux
2. Gastroesophageal reflux
3. Gastritis 
4. Eosinophilic esophagitis
5. Gastric outlet obstruction
6. Small bowel obstruction
1. Non gastrointestinal
1. sinusitis

Recurrent

1. Cyclic vomiting
2. Abdominal migraine

Investigation

1. TC,DC,ESR,RFT,LFT
2. USG
3. Upper GI endoscopy
4. Barium studules 
5. CT scan
6. MR I
7. Urine R/E c/s

Treatment

1. Causative treatment
2. Maintenance of hydration and electrolytes I/V fluids
3. Anti emetic
1. Ondansetrum 0.22-0.4mg/kg After 3 month 
2. Domperodone Before 3 month
3. Promethazine
4. Metroclopramide