Chapter 12 Egan's Testbanks 2024/2025
Exam Questions and Answers 100%
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- 🧠 ANSWER ✔✔Gaseous diffusion
- 🧠 ANSWER ✔✔1 and 3 only
6. Under what conditions will the alveolar PACO2 rise above normal?
a.
If both metabolic rate and ventilation increase (e.g., through exercise)
b.
If carbon dioxide production decreases relative to VA
c.
If VA decreases relative to carbon dioxide production
d.
When the patient is febrile - 🧠 ANSWER ✔✔If VA decreases relative to
carbon dioxide production
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,7. A 70-kg male patient has a CO2 of 200 ml/min and a VA of 9 L/min.
From this information, what can you infer?
a.
The patient's carbon dioxide production is abnormally low.
b.
The patient's A is abnormally low.
c.
The patient will have a lower than normal PACO2.
d.
The patient will have a higher than normal PACO2. - 🧠 ANSWER ✔✔The
patient will have a lower than normal PACO2.
8. What is the primary determinant of the PAO2?
a.
Body's CO2
b.
Metabolic rate of the body tissues
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,c.
PaO2
d.
PO2 in the inspired gas - 🧠 ANSWER ✔✔PO2 in the inspired gas
9. The PAO2 depends on which of the following factors?
1. Ambient (atmospheric) pressure
2. Fractional concentration of inspired O2
3. Level of VA
4. Types of fuels burned (fat, protein, and carbohydrate)
a.
1, 2, and 3 only
b.
1 and 2 only
c.
3 only
d.
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, 1, 2, 3, and 4 - 🧠 ANSWER ✔✔1, 2, 3, and 4
10. Calculate the approximate PAO2 given the following conditions
(assume R = 0.8): FiO2 = .40, PB = 770 mm Hg, PACO2 = 31 mm Hg
a.
100 mm Hg
b.
135 mm Hg
c.
250 mm Hg
d.
723 mm Hg - 🧠 ANSWER ✔✔250 mm Hg
11. A healthy person breathing 100% O2 at sea level would have PAO2 of
approximately what level?
a.
149 mm Hg
b.
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STATEMENT. ALL RIGHTS RESERVED
Exam Questions and Answers 100%
Guaranteed Success | Already Rated A+
- 🧠 ANSWER ✔✔Gaseous diffusion
- 🧠 ANSWER ✔✔1 and 3 only
6. Under what conditions will the alveolar PACO2 rise above normal?
a.
If both metabolic rate and ventilation increase (e.g., through exercise)
b.
If carbon dioxide production decreases relative to VA
c.
If VA decreases relative to carbon dioxide production
d.
When the patient is febrile - 🧠 ANSWER ✔✔If VA decreases relative to
carbon dioxide production
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STATEMENT. ALL RIGHTS RESERVED
,7. A 70-kg male patient has a CO2 of 200 ml/min and a VA of 9 L/min.
From this information, what can you infer?
a.
The patient's carbon dioxide production is abnormally low.
b.
The patient's A is abnormally low.
c.
The patient will have a lower than normal PACO2.
d.
The patient will have a higher than normal PACO2. - 🧠 ANSWER ✔✔The
patient will have a lower than normal PACO2.
8. What is the primary determinant of the PAO2?
a.
Body's CO2
b.
Metabolic rate of the body tissues
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,c.
PaO2
d.
PO2 in the inspired gas - 🧠 ANSWER ✔✔PO2 in the inspired gas
9. The PAO2 depends on which of the following factors?
1. Ambient (atmospheric) pressure
2. Fractional concentration of inspired O2
3. Level of VA
4. Types of fuels burned (fat, protein, and carbohydrate)
a.
1, 2, and 3 only
b.
1 and 2 only
c.
3 only
d.
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STATEMENT. ALL RIGHTS RESERVED
, 1, 2, 3, and 4 - 🧠 ANSWER ✔✔1, 2, 3, and 4
10. Calculate the approximate PAO2 given the following conditions
(assume R = 0.8): FiO2 = .40, PB = 770 mm Hg, PACO2 = 31 mm Hg
a.
100 mm Hg
b.
135 mm Hg
c.
250 mm Hg
d.
723 mm Hg - 🧠 ANSWER ✔✔250 mm Hg
11. A healthy person breathing 100% O2 at sea level would have PAO2 of
approximately what level?
a.
149 mm Hg
b.
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STATEMENT. ALL RIGHTS RESERVED