Term
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Definition
| Serum osmolality = 2*[serum sodium] + [serum glucose]/18 + [BUN]/2.8 |
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Definition
| Corrected sodium = [serum sodium] + 0.016*([glucose] - 100) |
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Definition
| Free water deficit = 0.5 x (1-[140/serum sodium]) |
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Term
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Definition
| Corrected total calcium = [measured total calcium] + 0.8*(4-[albumin]) |
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Term
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Definition
| Nitrogen intake - nitrogen output |
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Term
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Definition
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Term
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Definition
| Nitrogen output = [total urine urea nitrogen] + [total urine urea nitrogen]*0.2 + 2 |
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Term
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Definition
- 100 mL/kg for the first 10 kg
- 50 mL/kg for the second 10 kg
- 20 mL/kg for kg >20
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Term
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Definition
| Anion Gap = [Na] - ([Cl]+[HCO3]) |
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Term
| Dextrose provision through dialysate |
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Definition
kcal/day = total calories provided from dextrose per day * percent uptake
Example:
Dialysate = D5 at 100 mL/hr -> 408 kcal/day
Uptake = 40%
408 * 40% = 163 kcal/day |
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Term
| How do you calculate the daily maximum dextrose for a critically-ill PN patient? Provide an example for 70 kg patient. |
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Definition
4 mg/kg/min*weight in kg*1440 (minutes in 24 hours)/1000 = g dextrose per day
For 70 kg patient:
4 mg/kg/min*70*1440/1000 = 403 g dextrose/day |
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