Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 4, Problem 10RQ
According to Fick’s law, gas diffusion is
1. Directly proportional to the thickness of the tissue
2. Indirectly proportional to the diffusion constants
3. Directly proportional to the difference in partial pressure of the gas between the two sides
4. Indirectly proportional to the tissue area
A. 1 only
B. 3 only
C. 4 only
D. 2 and 3 only
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According to Fick's law, gas diffusion is 1. Directly proportional to the thickness of the tissue 2. Indirectly proportional to the diffusion constants 3. Directly proportional to the difference in partial pressure of the gas between the two sides 4. Indirectly proportional to the tissue area A. 1 only B. 3 only C. 4 only D. 2 and 3 only
Which of the following are true?
A. Peripheral Chemo receptors for O2 in H+ ions are found in the carotid and aortic bodies.
B. Peripheral chemoreceptors for O2 and H+ ions are found only in the carotid body.
C. Peripheral chemoreceptors for O2 and H+ ions are found only in the aortic body.
D. O2 and CO2 are monitored in the medulla
Choose the correct answer
a. Why is a minimum flow rate of 5 Lpm recommended for oxygen delivery by mask?
b. Why will an air entrainment mask never deliver 100% oxygen?
c. Briefly explain why the trans-tracheal catheter requires less oxygen flow than the nasal cannula to achieve a given arterial partial pressure of oxygen.
d. Explain the difference between a high-flow and a low-flow oxygen delivery system. Give an example of each.
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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- 4. The number of alveoli continues to increase until about A. 6 years of age B. 8 years of age C. 10 years of age D. 12 years of agearrow_forward9. Which of the following states that the rate of gas diffusion is inversely proportional to the weight of the gas? A. Graham’s law B. Charles’ law C. Henry’s law D. Gay-Lussac’s lawarrow_forwardSelect the disease which makes lungs lose its elasticity due to the inflammation of alveoli. A. Lung cancer B. Pneumonia C. Bronchitis D. Emphysema Recognize the correct adjustment in our body during acclimatization tohigh altitude. A. Ventilation rate decreases B. Hemoglobin affinity for oxygen increases in the tissue C. Kidney increases urinary excretion of bicarbonate ions D. Hemoglobin production decreasesarrow_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_forwardWhich of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheral tissues? a. decreased amounts of DPG b. increased tissue PO2 c. decreased pH d. decreased temperature e. all of the abovearrow_forwardMatch the lung disease with its correct description + Pulmonary Edema A. Alveoli become thickened and fuse together, impairing gas exchange + Emphysema B. Fluid accumulates in the space between the alveoli and alveolar capillaries, impairing exchange C. Exposure to irritants over time causes thickening of the alveolar + Asthma + Fibrotic lung disease membrane D. Inflammation causes bronchioles to constrict, impairing ventilationarrow_forward
- In which of the following situations would we expect atelectasis to develop? A. pressure in alveoli becoming greater than atmospheric B. pressures in the pleural cavity and alveoli equalising C. pressure in the pleural cavity becoming smaller than atmospheric D. decreased partial pressure of oxygen in blood E. breathing air under higher pressure in hyperbaric chamberarrow_forwardIn an adult patient you are treating, you notice decreased lung compliance, decreased tidal volume and an increase in minute ventilation (frequency of breathing). One possible diagnosis for this patient is.... A. Anemia B. Pulmonary fibrosis C. Emphysema D. Respiratory distress syndrome E. Chronic obstructive pulmonary diseasearrow_forward11) Which statement is FALSE about chest tube and under water seal? a. It could be used to manage both haemothorax and pneumothorax. b. C. The water bottle should be placed at a lower level than the chest to ensure best drainage. Placement of the chest tube is preferred at the fifth intercostal space with midaxillary line. d. It allows the air to re-inter the chest through the water seal.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_forwardA patient who breathes very slowly when wearing a low Flow of oxygen device would have: A. An increased concentration of oxygen in the lungs B. A decreased concentration of oxygen in the lungs C. There is no effect on oxygen concentration in the lungs D. There is a minimal if no effect on oxygen concentration in the lungsarrow_forwardMatch the Law/Effect with its definition/description A. Boyle’s Law B. Henry’s Law C. Dalton’s Law D. Haldane Effect E. Bohr Effect 1. The pressure of a gas is inversely proportional to its volume 2. A lower, more acidic pH promotes oxygen dissociation from hemoglobin 3. Hemoglobin saturated with oxygen has a low affinity for carbon dioxide 4. The concentration of a gas in a liquid is directly proportional to the solubility and partial pressure of that gas 5. The total pressure exerted by a mixture of gases is the sum of the partial pressures of the gases in the mixturearrow_forward
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