Differential Diagnosis for Patient with Nausea, Vomiting, and Diarrhea after Traveling Abroad
- Single Most Likely Diagnosis
- Traveler's Diarrhea: This is the most likely diagnosis given the patient's recent travel history and symptoms of nausea, vomiting, and diarrhea. Traveler's diarrhea is often caused by bacterial, viral, or parasitic infections acquired through contaminated food or water.
- Other Likely Diagnoses
- Viral Gastroenteritis: This is a common cause of nausea, vomiting, and diarrhea, and can be acquired through contact with infected individuals or contaminated surfaces.
- Food Poisoning: The patient may have consumed contaminated or spoiled food, leading to symptoms of nausea, vomiting, and diarrhea.
- Parasitic Infections (e.g. Giardiasis): Parasitic infections can cause similar symptoms, especially if the patient has been exposed to contaminated water or food.
- Do Not Miss Diagnoses
- Cholera: Although rare, cholera is a life-threatening infection that can cause severe diarrhea and dehydration, and is often associated with travel to certain regions.
- Typhoid Fever: This bacterial infection can cause symptoms of nausea, vomiting, and diarrhea, and is often acquired through contaminated food or water.
- Botulism: A rare but potentially life-threatening illness caused by a bacterial toxin, which can be acquired through contaminated food.
- Rare Diagnoses
- Cyclosporiasis: A parasitic infection that can cause diarrhea, nausea, and vomiting, often associated with travel to certain regions.
- Brucellosis: A bacterial infection that can cause symptoms of nausea, vomiting, and diarrhea, often acquired through contact with infected animals or contaminated animal products.
- Norovirus: A highly contagious viral infection that can cause symptoms of nausea, vomiting, and diarrhea, often acquired through contact with infected individuals or contaminated surfaces.