Chidi spent the night vomiting and had diarrhoea 8 times before sunrise. By morning he could not keep a sip of water down. He came to Mascot Healthcare and was assessed in time to avoid the emergency admission he was heading toward.
Postgraduate student, Akoka. Presented 18 hours after onset of acute vomiting, profuse watery diarrhoea (8 episodes), severe abdominal cramping, and inability to keep any oral fluids down. Clinical signs of moderate dehydration.
Acute Gastroenteritis (Norovirus)Chidi ate suya at a street stall the previous evening. By midnight, the first cramps started. By 2 am he was vomiting. By 6 am he had had 8 diarrhoeal episodes and vomited everything he tried to drink. His roommate drove him to Mascot Healthcare at 8 am.
Chidi was pale, with dry lips and a rapid pulse. The nurse who triaged him noted his heart rate and said: "You need fluids — let's get you seen now."
The doctor assessed him, confirmed moderate dehydration, and made the decision: IV access, IV fluids, anti-emetic. Within 2 hours, the vomiting had settled enough to attempt oral rehydration.
Acute gastroenteritis is very common — but dehydration can progress rapidly, especially when vomiting prevents oral rehydration. Early clinical assessment can determine who can be managed at home and who needs IV fluids.
Eight large-volume watery stools in 18 hours — no blood, no mucus.
Vomiting every 30–45 minutes for the first 8 hours — preventing any oral rehydration.
Intense periumbilical cramping immediately before each bowel movement.
Dry mouth, sunken eyes, reduced skin turgor, tachycardia 108 bpm, BP 100/70 mmHg.
Every attempt at ORS or water was vomited within minutes.
Water and Coca-Cola — attempted for rehydration; vomited up within minutes.
ORS sachet (from pharmacy) — appropriate; could not be retained.
Metronidazole (self-prescribed from home supply) — not indicated for viral gastroenteritis; has no activity against norovirus.
IV access established. IV fluids were given to rehydrate him quickly. Anti-sickness medication was given to control vomiting. Blood electrolytes were checked and a mild potassium deficit was corrected in the drip.
After 2 hours, vomiting settled. ORS trial — retained. Step-down to oral rehydration. Chidi was discharged at 4 pm with ORS sachets, advice on clear fluid escalation, and a return plan if vomiting recurred.
Stool MCS sent — results awaited (virus isolated clinically; likely norovirus given symptom onset pattern and no blood in stool).
Acute Gastroenteritis (likely viral — norovirus; no blood/mucus in stool; community outbreak cluster identified in hostel)
IV fluid resuscitation; IV potassium correction; IV anti-sickness medication; step-down to oral ORS; discharge with ORS and return plan
Symptoms resolved by 48 hours. Eating normally by day 3. No recurrence.
Chidi was discharged the same afternoon in a significantly better clinical state. He made a complete recovery within 48 hours with home ORS and rest.
Viral gastroenteritis is usually self-limiting — but moderate to severe dehydration develops faster than most people realise when vomiting prevents rehydration. The clinical threshold for IV fluids is when oral rehydration cannot be maintained.
Antibiotics are not a treatment for viral gastroenteritis. ORS — not Coca-Cola — is the correct rehydration solution. IV fluids are for when ORS fails.
When you can't keep water down after several hours of vomiting and diarrhoea — go to a clinic. You may need a drip.
Book an appointment at Mascot Healthcare, Akoka — same-day slots often available, 4.9★ rated.