ACE SAT

Question 1

(H+)+ HCO3 <-> H2CO3 <-> CO2 + H2O

Answer 1

Aerobic metabolism equation

Question 2

Easy way to remember Bohr effect

Answer 2

Release of O2 at tissue level

(More right more release)

Question 3

Key thing to look for in a lab for shock?

Answer 3

Elevated Lactate

Question 4

What value should lactate be to be considered significant?

Answer 4

Over 4

Question 5

If someone is acidotic, what will there K likely be?

Answer 5

Elevated/hyperkalemic

Question 6

How is CO2 transported mostly?

Answer 6

As HCO3 in the plasma

Question 7

Relation of CO2/pH/K+

Answer 7

Inc Co2 by 10 = decrease pH by 0.08
Increased pH by 0.1 = decreased K by 0.6

Question 8

To decrease PaCo2 on the vent

Answer 8

Increase VE
Verify max safe VT (leep pplat under 30-35)
Increase F (rate)

Question 9

To INCREASE paCO2

Answer 9

Decrease Ve
1. Decrease frequency (rate)
2. Decrease Vt no more than absolutely necessary (prevent de-recruitment)

Question 10

To increase PaO2 on the vent

Answer 10

1. Verifiy normal/adequate Ve
2. Maximize FiO2
3. Add PEEP
4. Consider reducing I:E ratio
5. Invert I:E ratio

Question 11

Aspirin OD promotes what?

Answer 11

Hyperventilation
Eventually a metabolic acidosis

Question 12

Normal Ve

Answer 12

4-8L/min