Acid Base

Question 1

Henderson Hasselbach

Answer 1

H + HCO3 H2CO3 CO2 + H2O

Question 2

Determine acid/base balance

Answer 2

1. Acid or base
2. Metabolic or respiratory
3. Anion gap (Na - Bicarb - CL)
4. Winters: pCO2 = [1.5 x Bicarb]+8+/- 2
5. Corrected co2: delta anion gap/delta Bicarb gap

Question 3

Anion gap

Answer 3

Na-Bicarb-CL

>11 is a gap

Question 4

Winters formula

Answer 4

Determines respiratory compensation
pCO2 = [1.5 x Bicarb]+8+/- 2
pCO2 > winters = concomitant respiratory acidosis

Question 5

Delta gap and corrected bicarb

Answer 5

Delta gap (measured - 12)+ measured bicarb 
>24 = primary metabolic alkalosis