The hardest part about this chief complaint is expanding your differential beyond gastritis!!!
Step 1: Expand Your Differential Diagnosis
* Early appendicitis* Bowel obstructions* Myocardial infarction* Elevated ICP* Diabetic Ketoacidosis
Step 2: Give a Testing Plan
* High yield tests to consider* EKG – older adults* Pregnancy test – women of child bearing age* Electrolytes – most patients* Other tests to consider* CBC* LFTs/Lipase* Urinalysis
Step 3: Give a Treatment Plan
* IV fluids (1L normal saline)* Antiemetics* Ondansetron (Zofran)* Promethazine (Phenergan)* Prochlorperazine (Compazine)
Step 4: PO Challenge
* Prior to discharge patient needs to keep fluids down* Bonus points if you update your attending on this
Step 5: Repeat Abdominal Exam
* Perform this prior to discharging patient
Additional Reading
* Antiemetic Pearls (EM Cases)