Equations

Question 1

Magnesium (g to meq)

Answer 1

8.12 meq

Question 2

Corrected Calcium

Answer 2

Ca + 0.8(4-albumin)

Question 3

Nitrogen Balance

Answer 3

Protein intake/6.25 - (UN + 4)

Question 4

Calculate Osmolarity PPN

Answer 4

1. 5 x g Dex per L
2. 10 x g protein per L
3. Add 1 and 2
4. Add 300 to 400 mL from electrolytes

Question 5

Holiday Segar Hourly

Answer 5

<10 kg: 4 mL/kg/hr
10-20 kg: 40 mL/kg/hr + 2 mL/kg for every kg >10
>20 kg: 60 mL/kg/hr + 1 mL/kg for every kg >20 kg

Question 6

Holiday Segar Daily

Answer 6

<10 kg: 100 mL/kg/day
10-20 kg: 1000 mL + 50 mL/kg/day for every kg >10
>20 kg: 1500 mL + 20 mL/kg/d for every kg >20

Question 7

Pediatric Z Score

Answer 7

(X-m)/SD
X = observed value
M = mean
SD = standard deviation

Question 8

Propofol

Answer 8

Dose ordered / dose available) x volume available