ABG Flashcards
1
Q
PaO2
A
80-100
-hypoxic <60
2
Q
arterial O2 sat of hemoglobin- SaO2
A
92-99
3
Q
pH
A
7.35-7.45
4
Q
PaCO2
A
35-45
-respiratory
5
Q
HCO3
A
22-26
-metabolic
6
Q
base excess
A
-2-+2
7
Q
compensated
A
- compensated if both PaCO2 and HCO3 in same direction
- partial if both same but pH not normal
- absent if 1 normal
- complete if pH normal
8
Q
vent FiO2
A
0.21-1.00
9
Q
vent tidal vol
A
6-8
10
Q
vent I:E
A
1:2, 2:1 w ARDS
11
Q
PEEP
A
5-20
-physiologic 3-5
12
Q
vent problems-5
A
- tension pneumothorax
- oxygen toxicity- FiO2 100% for only 24 hrs
- respiratory acidosis/alkalosis
- infection
- dysphagia and aspiration
13
Q
5 mechanisms that lead to hypoxia
A
- hypoventilation
- intrapulmonary shunting
- ventilation-perfusion mismatch
- diffusion defects
- low cardiac output
