Question:medium
Dosage of intravenous fluid for a 2 month old child with diarrhoea and severe dehydration:
Dosage of intravenous fluid for a 2 month old child with diarrhoea and severe dehydration:
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WHO Plan C: severe dehydration needs 100 ml/kg, over 6 hours in infants.
Updated On: Jun 24, 2026
- 100 ml/kg in 6 hours
- 50 ml/kg in 6 hours
- 75 ml/kg in 6 hours
- 80 ml/kg in 6 hours
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The Correct Option is A
Solution and Explanation
Step 1: Classify the case first. Diarrhoea with severe dehydration means the WHO Plan C of immediate intravenous fluids applies, and the standard total volume to correct severe dehydration is 100 ml/kg.
Step 2: Now choose the timing by age. The WHO chart gives two speeds: under 1 year the volume runs in over 6 hours, and 1 year and above it runs in over 3 hours. The slower rate in infants protects against circulatory overload.
Step 3: The patient is 2 months old, clearly under one year, so the 6 hour schedule is used. That gives 100 ml/kg in 6 hours.
Step 4: Within that window the first 30 ml/kg is pushed in the first hour to restore perfusion, and the remaining 70 ml/kg is given over the following 5 hours. Lower totals such as 50, 75, or 80 ml/kg would leave the child under-resuscitated.
\[\boxed{\text{100 ml/kg in 6 hours}}\]
Step 2: Now choose the timing by age. The WHO chart gives two speeds: under 1 year the volume runs in over 6 hours, and 1 year and above it runs in over 3 hours. The slower rate in infants protects against circulatory overload.
Step 3: The patient is 2 months old, clearly under one year, so the 6 hour schedule is used. That gives 100 ml/kg in 6 hours.
Step 4: Within that window the first 30 ml/kg is pushed in the first hour to restore perfusion, and the remaining 70 ml/kg is given over the following 5 hours. Lower totals such as 50, 75, or 80 ml/kg would leave the child under-resuscitated.
\[\boxed{\text{100 ml/kg in 6 hours}}\]
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