COMPOSITION OF ALVEOLAR AIR
What is the partial pressure for oxygen in the inspired air?
| A |
116 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
0.3 mm Hg |
What is the partial pressure for oxygen in the inspired air?
| A |
116 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
0.3 mm Hg |
Partial pressure of O2 in inspired air (Pi O2) – 158 mm Hg
- Rate of absorption of O2 into blood
- Rate of entry of new O2 into lungs by ventilatory process.
- Partial pressure of O2 in inspired air (Pi O2)
- 158 mm Hg
- Partial pressure of O2 in alveolar air (PA O2)
- 100 mm Hg
- Calculated by “Alveolar gas equation”.
- Partial pressure of O2 in expired air (PE O2)
- 116 mm Hg
2. Carbon-di-oxide:
- Partial pressure of CO2 in inspired air (Pi CO2)
- 0.3 mm Hg
- Partial pressure of CO2 in alveolar blood (PA CO2)
- 40 mm Hg
- Partial pressure of CO2 in expired air (PE CO2)
- 32 mm Hg
What is the partial pressure for oxygen in the expired air?
| A |
116 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
0.3 mm Hg |
What is the partial pressure for oxygen in the expired air?
| A |
116 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
0.3 mm Hg |
- Rate of absorption of O2 into blood
- Rate of entry of new O2 into lungs by ventilatory process.
- Partial pressure of O2 in inspired air (Pi O2)
- 158 mm Hg
- Partial pressure of O2 in alveolar air (PA O2)
- 100 mm Hg
- Calculated by “Alveolar gas equation”.
- Partial pressure of O2 in expired air (PE O2)
- 116 mm Hg
What is the partial pressure for oxygen in the alveolar air?
| A |
116 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
0.3 mm Hg |
What is the partial pressure for oxygen in the alveolar air?
| A |
116 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
0.3 mm Hg |
Partial pressure of O2 in alveolar air (PA O2) – 100 mm Hg.
- Rate of absorption of O2 into blood
- Rate of entry of new O2 into lungs by ventilatory process.
- Partial pressure of O2 in inspired air (Pi O2)
- 158 mm Hg
- Partial pressure of O2 in alveolar air (PA O2)
- 100 mm Hg
- Calculated by “Alveolar gas equation”.
- Partial pressure of O2 in expired air (PE O2)
- 116 mm Hg
What is the partial pressure for carbon-di-oxide in the alveolar blood?
| A |
0.3 mm Hg |
|
| B |
40 mm Hg |
|
| C |
32 mm Hg |
|
| D |
158 mm Hg |
What is the partial pressure for carbon-di-oxide in the alveolar blood?
| A |
0.3 mm Hg |
|
| B |
40 mm Hg |
|
| C |
32 mm Hg |
|
| D |
158 mm Hg |
Partial pressure of CO2 in alveolar blood (PA CO2) – 40 mm Hg.
Carbon-di-oxide:
- Partial pressure of CO2 in inspired air (Pi CO2)
- 0.3 mm Hg
- Partial pressure of CO2 in alveolar blood (PA CO2)
- 40 mm Hg
- Partial pressure of CO2 in expired air (PE CO2)
- 32 mm Hg
What is the partial pressure for carbon-di-oxide in the inspired air?
| A |
0.3 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
32 mm Hg |
What is the partial pressure for carbon-di-oxide in the inspired air?
| A |
0.3 mm Hg |
|
| B |
158 mm Hg |
|
| C |
100 mm Hg |
|
| D |
32 mm Hg |
Partial pressure of CO2 in inspired air (Pi CO2) – 0.3 mm Hg
Carbon-di-oxide:
- Partial pressure of CO2 in inspired air (Pi CO2)
- 0.3 mm Hg
- Partial pressure of CO2 in alveolar blood (PA CO2)
- 40 mm Hg
- Partial pressure of CO2 in expired air (PE CO2)
- 32 mm Hg.
What is the partial pressure for carbon-di-oxide in the expired air?
| A |
0.3 mm Hg |
|
| B |
158 mm Hg |
|
| C |
40 mm Hg |
|
| D |
32 mm Hg |
What is the partial pressure for carbon-di-oxide in the expired air?
| A |
0.3 mm Hg |
|
| B |
158 mm Hg |
|
| C |
40 mm Hg |
|
| D |
32 mm Hg |
Partial pressure of CO2 in expired air (PE CO2) – 32 mm Hg
Carbon-di-oxide:
- Partial pressure of CO2 in inspired air (Pi CO2)
- 0.3 mm Hg
- Partial pressure of CO2 in alveolar blood (PA CO2)
- 40 mm Hg
- Partial pressure of CO2 in expired air (PE CO2)
- 32 mm Hg.
