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| ==TBW==
| | #REDIRECT[[Intravenous fluid therapy]] |
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| TBW = 0.6 x weight (kg); 2/3 intra, 1/3 extracellular. 1/4 of extracellular is vascular.
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| ==Maintenance==
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| 100 cc/kg/d (4cc/kg/h) 1st 10 kg
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| 50 cc/kg/d (2cc/kg/h) 2nd 10 kg
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| 20 cc/kg/d (1cc/kg/h) each kg > 20
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| *or* 1500 cc/m2/d (bsa (m2) = sqr rt [wt (kg) x ht (cm)]/3600
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| Insensible losses = 300-400 cc/m2/d
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| Adult Standard: D5 0.45%NS @ 75-125 mL/hr + 20meq/L of KCl
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| Deficit: % dehydration x baseline weight
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| Daily volume needed = maintenance + deficit - fluid already given (i.e. boluses)
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| Hourly rate daily vol/24 hr
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| (or correct 1/2 of deficit in first 8 hr, remainder in next 16)
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| ==Electrolytes==
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| Maintenance Na = 3 mEq/kg/d; K = 2 mEq/kg/d
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| Deficit = [desired - measured mEq/L] x fD x wt (kg)
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| fD (distribution factor) Na = 0.6, K = 0.6, Cl = 0.2-0.3, HCO3 = 0.5
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| (Maintenance + deficit)/daily volume = concentration of electrolyte in fluid to be given
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| 4mL/kg of H2O lost, ups Na by 1meq
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| NS = 154 mEq Na/L, 1/2 NS = 77 mEq/L, 1/4NS = 38 mEq/L
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| ==Source==
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| 7/2/09 PANI
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| [[Category:FEN]]
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