Cardiopulmonary 1 - Midterm; Physiology Flashcards
1
Q
What is the normal arterial oxygen (PaO2) range?
A
80-100 mmHg (age dependent)
2
Q
What is the normal arterial carbon dioxide (PaCO2) range?
A
35-45 mmHg
for calculations use 40 mmHg
3
Q
What is the normal arterial pH (pHa) range?
A
7.35-7.45
for calculations use 7.40
4
Q
What is the normal arterial bicarbonate (HCO3) range?
A
22-26 mEq/L
for calculations use 24
5
Q
What arterial pH (pHa) is acidosis?
A
pHa < 7.35
6
Q
What arterial pH (pHa) is alkalosis?
A
pHa < 7.45
7
Q
What affect does lowering [HCO3] have on pHa?
A
Lowers the pHa!
decrease HCO3 = decrease pHa
increase HCO3 = increase pHa
8
Q
What affect does increasing [CO2] have on pHa?
A
increase CO2 = decrease pHa
decrease CO2 = increased pHa
