At altitude there is still 21% Oxygen of a lower barometric pressure, this would decrease the gradient of diffusion between the alveoli and the pulmonary capillaries. True O False Question 9 Hyperventilation can lead to a drop in Alveolar CO2 and cause an alkalotic state (hint: think of what is happening to CO2 and how CO2 affects pH) O True False Question 10 During exercise Alveolar ventilation must increase proportionately with CO2 production O Alveolar PCO2 is trying to be maintained at 40mmHg we go into our reserve lung volumes O All of the above

At altitude there is still 21% Oxygen of a lower barometric pressure, this would decrease the gradient of diffusion between the alveoli and the pulmonary capillaries. True O False Question 9 Hyperventilation can lead to a drop in Alveolar CO2 and cause an alkalotic state (hint: think of what is happening to CO2 and how CO2 affects pH) O True False Question 10 During exercise Alveolar ventilation must increase proportionately with CO2 production O Alveolar PCO2 is trying to be maintained at 40mmHg we go into our reserve lung volumes O All of the above

Principles Of Pharmacology Med Assist

6th Edition

ISBN:9781337512442

Author:RICE

Publisher:RICE

Chapter11: Administration Of Nonparenteral Medications

Section: Chapter Questions

Problem 16RQ

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Question 28 de cad O C. Systemic arterial PCO2 O D. Pulmonary arterial PO2 O E. Respiratory quotient (R) JARACA The alveolar gas equation is used to determine the partial pressure of alveolar oxygen by using a measure of the O A. Systemic arterial PO2 OB. Systemic venous PO2 FREE
Question 5 2. During inspiration, how does the partial pressure of oxygen in the alveoli changes relative to the deoxygenated blood in the lung capillaries to enable diffusion of oxygen across the alveolar membrane? (Mention if the partial pressure of oxygen is increased or decreased in the alveoli compared to capillary deoxygenated blood during inspiration, and how that affects oxygen diffusion across the alveolar membrane).
Question 39 At FRC the alveolar pressure is OA. Equal to plural pressure OB. Equal to atmospheric pressure OC. More negative that plural pressure OD. Less than atmospheric pressure O E. Greater than atmospheric pressure
Question 60 You embark on a hiking trip on Mt. Kilimanjaro (altitude = 19,000 ft; Atmospheric air pressure = 379 mmHg). As you ascend, what happens to the PO 2 in the alveoli? No change from sea level, as long as we breathe in the same volume of air. Alveolar PO, decreases. Alveolar PO 2 increases.
Question 12 Which of the following about the pleural sacs is incorrect? O Provide lubrication between moving organs O Compartmentalize thoracic cavity O Comprised of triple-layered membrane of stratified squamous epithelium O Intrapleural pressure keeps lungs partially expanded at all times O One sac per lung, which are stuck to lung, chest wall, and diaphragm • Previous
QUESTION 41 What is the net movement of carbon dioxide gas, given the following: Partial pressure of carbon dioxide in the blood Partial pressure of carbon dioxide in the alveolar air = 95 mmHg = 100 mmHg Carbon dioxide will not move because the solubility coefficient for carbon dioxide is too small Carbon dioxide will not move because the concentration gradient is too small Carbon dioxide will move into the blood Carbon dioxide will move into the alveolus
Question 16 Which of the following is essential for the proper functioning of the lungs? O optimal body temperature O diffusion of carbon dioxide from cells O essential nutrients from our diet sufficient oxygen O adequate atmospheric pressure
QUESTION 38 Which of the following statements is FALSE? O O The partial pressure of O₂ in the alveoli is higher than it is in the pulmonary capillaries so O2 diffuses from the alveoli to the pulmonary capillaries, The partial pressure of CO2 in the alveoli is 40 mm Hg and in the pulmonary capillaries it is 46 mm Hg. Although this is not a big pressure gradient, CO2 is very soluble so it diffuses from the pulmonary capillaries to the alveoli where it then is exhaled. The partial pressure of O₂ in the systemic capillaries is higher than it is in the body cells so O2 diffuses from the systemic capillaries to the body cells. The partial pressure of CO2 in the systemic capillaries is higher than it is in the body cells so CO2 diffuses from the systemic capillaries to the body cells.
QUESTION 38 Which of the following statements is FALSE? O C The partial pressure of O2 in the alveoli is higher than it is in the pulmonary capillaries so O2 diffuses from the alveoli to the pulmonary capillaries. The partial pressure of CO2 in the alveoli is 40 mm Hg and in the pulmonary capillaries it is 46 mm Hg. Although this is not a big pressure gradient, CO2 is very soluble so it diffuses from the pulmonary capillaries to the alveoli where it then is exhaled. The partial pressure of O2 in the systemic capillaries is higher than it is in the body cells so O2 diffuses from the systemic capillaries to the body cells. The partial pressure of CO2 in the systemic capillaries is higher than it is in the body cells so CO2 diffuses from the systemic capillaries to the body cells. 0
Question 7 6 pts Given the following values: Tidal volume: 400 ml Expiratory Reserve Volume: 1.000 ml Vital Capacity: 4,500 ml Residual volume: 1,100 ml Dead Space Volume: 150 ml Respiratory Rate: 20 breaths/minute Write down the formulae for IRV. IC. and Minute ventilation and calculate their corresponding values, Imclude units. Edit View Inscrt Format Tools Table 12ptv Paragraph BIUA T
QUESTION 2 The chest wall transmural pressure Atmospheric pressure (Patm) = 760 mmHg F Thoracic wall [D G 756 760 Lung A Diaphragm Alveolar pressure (Paly) equals -4 mm Hg equals 0 mm Hg cannot be determined by the information provided in this figure equals +4 mm Hg
Question 6 In patients with pulmonary fibrosis, alveolar thickness is increased (due to tissue necrosis), and the alveolar area is reduced. Explain how increased alveolar thickness and the decreased area would affect the diffusion of oxygen from lung alveoli into capillary blood. (Use Fick’s equation to explain how oxygen diffusion will be affected when alveolar thickness increases and area decreases).