Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 4, Problem 8RQ
Under normal resting conditions, the diffusion of oxygen and carbon dioxide is usually completed in about
1. 0.25 second
2. 0.50 second
3. 0.75 second
4. 1.0 second
5. one-third of the time available:
A. 2 only
B. 3 only
C. 4 and 5 only
D. 1 and 5 only
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Under normal resting conditions, the diffusion of oxygen and carbon dioxide is usually completed in about 1. 0.25 second 2. 0.50 second 3. 0.75 second 4. 1.0 second 5. one-third of the time available: A. 2 only B. 3 only C. 4 and 5 only D. 1 and S only
In which of the following types of hypoxia is the oxygen pressure of the arterial blood (Pa(o2)) usually normal? 1. Hypoxic hypoxia 2. Anemic hypoxia 3. Circulatory hypoxia 4. Histotoxic hypoxia A. 1 only B. 2 only C. 3 and 4 only D. 2, 3, and 4 only
As an individual ages, the 1. Forced vital capacity increases 2. Peak expiratory flow rate decreases 3. Forced expiratory volume in 1 second increases 4. Maximum voluntary ventilation increases A. 1 only B. 2 only C. 2 and 4 only D. 3 and 4 only
Chapter 4 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 4 - Prob. 1RQCh. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - 4. At sea level, the normal percentage of carbon...Ch. 4 - At sea level, the alveolar water vapor pressure in...Ch. 4 - If a patient is receiving an FIO2 of 0.60 on a day...Ch. 4 - Prob. 7RQCh. 4 - Under normal resting conditions, the diffusion of...Ch. 4 - 9. Which of the following states that the rate of...Ch. 4 - According to Ficks law, gas diffusion is 1....
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- When alveolar ventilation is 7 L/min and the pulmonary blood flow is 9.5 L/min, the V/Q ratio is about A. 0.4 B. 0.5 C. 0.6 D. 0.7arrow_forwardWhich of the following cause(s) pulmonary vasoconstriction? 1. Hypercapnia 2. Hypoxia 3. Acidemia 4. Increased H+ concentration A. 3 only B. 2 and 4 only C. 2, 3, and 4 only D. 1, 2, 3, and 4arrow_forwardDuring acute alveolar hyperventilation, the blood 1. P(co2) increases 2. H(2)CO(3) decreases 3. HCO(3)- increases 4. pH decreases A. 2 only B. 4 only C. 1 and 3 only D. 2 and 4 onlyarrow_forward
- Which of the following cause(s) passive changes in the pulmonary vascular resistance? 1. pH changes 2. Transpulmonary pressure changes 3. P(co2) changes 4. Blood viscosity changes A. 2 only B. 3 only C. 1 and 3 only D. 2 and 4 onlyarrow_forwardApproximately how much of a forced expiratory maneuver is effort dependent? A. 20% B. 30% C. 40% D. 50%arrow_forwardIn a patient admitted in the hospital has ventilation of 3 lit/min and cardiac output is 2 lit./min. Which of the following statements is/are correct.? a. His V/Q ratio is 0.6 Which is a shunt unit. b. His V/Q ratio is 1.5 which is a dead space unit. c. A patient could be suffering from MI. d. Both (b) and (c) are CORRECT. e. None of the above is CORRECT.arrow_forward
- I. the first quantity is larger of the 2II. the second quantity is larger of the 2III. they're equal1. a. The percentage of oxygen dissolved in plasma. b. The percentage of oxygen transported as oxyhemoglobin2.a. Resistance to airflow in a bronchioleb. Resistance to airflow in the trachea3.a. Atmospheric pressure during inspirationb. Pulmonary pressure during inspirationarrow_forwardWhich of the following cause(s) passive changes in the pulmonary vascular resistance?1. pH changes2. Transpulmonary pressure changes3. PCO2 changes4. Blood viscosity changesA. 2 onlyB. 3 onlyC. 1 and 3 onlyD. 2 and 4 onlyarrow_forward
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