MBBS OSCE · Paediatrics
Dehydration in acute gastroenteritis — WHO Plan B OSCE
OSCE on WHO dehydration classification, ORS 75 mL/kg calculation, zinc, and danger signs.
10 min stationSource-verified ·
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Exam tags
NEET-PGINICET
Candidate instructions
Classify dehydration, prescribe fluids, and counsel the caregiver on home care and return precautions. [1]
Candidate tasks
- Elicit WHO clinical signs and classify SOME dehydration. [1]
- Calculate Plan B ORS volume (75 mL/kg over 4 h).[1]
- Continue breastfeeding; replace ongoing losses.
- Prescribe zinc 10–20 mg daily for 10–14 days (WHO 2005).[1]
- Teach Plan A after recovery and danger signs for return.
Examiner checklist
- Correct classification (not severe) [1]
- 675 mL over 4 h for 9 kg
- Zinc dose/duration
- Avoids routine antibiotics and antimotility agents
- Clear danger-sign advice
- Knows Plan C triggers
Model standard
Plan B ORS rehydration in clinic, zinc, continued feeding, step to Plan A when improved; IV Plan C only for severe dehydration/shock. [1]
Common errors
- Unnecessary IV fluids [1]
- Wrong ORS volume
- Omitting zinc
References1ShowHide
- [1]World Health Organization The treatment of diarrhoea: a manual for physicians and other senior health workers. 4th revision. World Health Organization, 2005.Source