DKA and HHS Calculations

Question 1

Anion Gap

Answer 1

Anion Gap= Na-Cl-HCO3

Question 2

Serum Osmolality

Answer 2

= (2*Na)+(glucose/18)

Question 3

Corrected Serum Sodium

Answer 3

= Na+0.016*(glucose-100)

Question 4

Ideal Body weight

Answer 4

Women: 45.5 kg + 2.3 kg x ( height, in - 60 )
Male: 50kg + 2.3 kg x ( height, in - 60 )

Question 5

Creatinine Clearance

Answer 5

(140 - age)Weight (kg)/ 72serum Cr

multiply by 0.85 for women

Question 6

__?__| __?__| __?__
__?__| __?__| __?__
(Fishbone)

Answer 6

Na | CL | BUN

K | HCO3 | Cr

Question 7

Dosing of Bicarb

Answer 7

[(o.5L/kg)(IBW)]*(12-Actual HCO3)

Question 8

Actual HCO3 value

Answer 8

HCO3 = 0.03 × pCO2 × 10^(pH- 6.1)