FiO2 vs. PaO2 vs. IntraPulmonary Shunts Flashcards
1
Q
If the FiO2 is (0.4) and the PaO2 (mmHg) is 200, what is the intra-pulmonary shunt to CO ratio (Qs/CO)?
A
5%
2
Q
If the FiO2 is (0.6) and the PaO2 (mmHg) is 200, what is the intra-pulmonary shunt to CO ratio (Qs/CO)?
A
10%
3
Q
If the FiO2 is (0.8) and the PaO2 (mmHg) is 200, what is the intra-pulmonary shunt to CO ratio (Qs/CO)?
A
15%
4
Q
If the FiO2 is (1.0) and the PaO2 (mmHg) is 200, what is the intra-pulmonary shunt to CO ratio (Qs/CO)?
A
20%
5
Q
What are the 8 causes of intrapulmonary shunts?
A
“OPERA CAP”
Obstruction (Airway) Pneumonia Edema (Pulmonary) aRds Atelectasis COPD Asthma Pulmonary Fibrosis
6
Q
What are the 4 causes of dead space?
A
“TIVE” think like TIVA but an
Thrombus
Inotropy (poor cardiac output)
Volume (hypovolemia)
Embolism (Pulmonary)
