|
Tag: Redirect target changed |
| (11 intermediate revisions by 4 users not shown) |
| Line 1: |
Line 1: |
| ''See [[critical care quick reference]] for bolus doses by weight.''
| | #REDIRECT[[Intravenous fluid therapy]] |
| | |
| ==TBW==
| |
| TBW = 0.6 x weight (kg); 2/3 intra, 1/3 extracellular. 1/4 of extracellular is vascular.
| |
| | |
| ==Maintenance==
| |
| *Calculation 1
| |
| **100 cc/kg/d (4cc/kg/h) 1st 10 kg
| |
| **50 cc/kg/d (2cc/kg/h) 2nd 10 kg
| |
| **20 cc/kg/d (1cc/kg/h) each kg > 20
| |
| *Calculation 2
| |
| **1500 cc/m2/d (bsa (m2) = sqr rt [wt (kg) x ht (cm)]/3600
| |
| | |
| Insensible losses = 300-400 cc/m2/d
| |
| | |
| | |
| Adult Standard: D5 0.45%NS @ 75-125 mL/hr + 20meq/L of KCl
| |
| | |
| Deficit: % dehydration x baseline weight
| |
| | |
| | |
| Daily volume needed = maintenance + deficit - fluid already given (i.e. boluses)
| |
| | |
| Hourly rate daily vol/24 hr
| |
| | |
| (or correct 1/2 of deficit in first 8 hr, remainder in next 16)
| |
| | |
| ===Pediatric===
| |
| *Maintenance fluid default: D5-1/2NS plus 20 mEq of potassium
| |
| | |
| ==Electrolytes==
| |
| Maintenance Na = 3 mEq/kg/d; K = 2 mEq/kg/d
| |
| | |
| Deficit = [desired - measured mEq/L] x fD x wt (kg)
| |
| | |
| fD (distribution factor) Na = 0.6, K = 0.6, Cl = 0.2-0.3, HCO3 = 0.5
| |
| | |
| (Maintenance + deficit)/daily volume = concentration of electrolyte in fluid to be given
| |
| | |
| 4mL/kg of H2O lost, ups Na by 1meq
| |
| | |
| NS = 154 mEq Na/L, 1/2 NS = 77 mEq/L, 1/4NS = 38 mEq/L
| |
| | |
| ==See Also==
| |
| *[[Intravenous Fluids (Main)]]
| |
| *[[Critical care quick reference]]
| |
| | |
| ==References==
| |
| <references/>
| |
| | |
| | |
| [[Category:FEN]]
| |
