Case 2: Fluid Volume Calculations


Maintenance = [(30 x 25) + 70] = 820 ml/day

Replacement of dehydration deficit:

English Calculation
0.07 x 55 lb = 3.85 lb of weight loss from dehydration
3.85 lb x 454 ml/lb = 1748 ml

OR

Metric Calculation
0.07 X 25 X 1000 = 1750 ml
Correction of 80% of dehydration deficit in the first 24 hours:
0.80 x 1750 ml = 1400 ml

Total fluid requirement for dehydration plus daily maintenance for the first 24 hours:

820 ml + 1400 ml = 2220 ml (approximately 92 ml/hour)

Return to Cases