Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 19, Problem 2RQ
The oxygen diffusion capacity of high-altitude natives is about
A. 5-10 percent greater than predicted
B. 10-15 percent greater than predicted
C. 15-20 percent greater than predicted
D. 20-25 percent greater than predicted
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The steep part of the O2-Hb dissociation curve...
a.
is where CO2 unloading occurs at the tissue cells
b.
is where the PO2 is high (>90mmHg)
c.
is where the oxyhemoglobin is high (>90 % saturated)
d.
is where O2 unloading occurs at the tissue cells
What is the primary goal of oxygen therapy in patients with chronic obstructive pulmonary disease (COPD)?
A) To decrease carbon dioxide levels
B) To increase oxygen saturation
C) To improve exercise tolerance
D) To reduce respiratory rate
Which conditions would curve A most likely resemble?
A. An individual with chronic obstructive pulmonary disease
B. Increased H+ content
C, Low temperatures
D. An individual during moderate exercise
E. CO2 poisoning
Chapter 19 Solutions
Cardiopulmonary Anatomy & Physiology
Ch. 19 - The barometric pressure is about half the...Ch. 19 - 2. The oxygen diffusion capacity of high-altitude...Ch. 19 - Prob. 3RQCh. 19 - Prob. 4RQCh. 19 - Prob. 5RQCh. 19 - At high altitude, the True _______ False ________...Ch. 19 - 7. In individuals who True ___________ False...Ch. 19 - 8. There is a linear True_______ False...Ch. 19 - 9. Natives who have been True ________...Ch. 19 - 10. The concentration of True _______ False...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The alveoli of mammalian lungs do not contain 20.9% O2 (that is, the percentage of O2 in atmospheric dry air) because A. there is dead space in the trachea and bronchial tree and the air in the lungs is humidified. B. mammals do not normally ventilate the lungs at a high enough rate. C. the trachea and bronchi are too small in volume to contain this amount of O2. D. mammal lungs have too many alveoli to ventilate. E. some O2 has been exchanged with the blood before reaching the alveoli.arrow_forwardChickens also hyperventilate during hot weathers and make their egg brittle. To counter this, the poultry farmer should apply one of the following: a. carbon dioxide bombardment b. adding soda in drinking water c. paper bag method d. incubation of eggs *Choose only one answerarrow_forwardThe movement of gas from an area of higher pressure to an area of lower pressure until the partial pressures in the two areas become equal is caused by ________________. Group of answer choices A the partial pressure gradient B the solubility coefficient C active transport D cellular respirationarrow_forward
- COVID 19 disease is caused by the SARSCoV-2 virus. In some patients, a pneumonia can develop because alveollar inflamation making more difficulting the as exchange in the lungs. What are the symptoms that a patient with pneumonia will manifest? (choose all alternatives that are true) a. An increase in the partial pressure of O2 in the blood b. Alkalosis c. Acidosis d. The blood pH will be lower than 7.35 e. High levels of CO2 in the bloodarrow_forwardPulmonary edema can occur at high altitude this is happening because a. Of the swelling of the brain b. Of the leakage of fluid out of capillaries in the lung c. The blood pressure has dropped to low d. Of the shortage of breatharrow_forwardWhich of the following statements about the oxygen-binding curves is FALSE? Select one: a. During normal activity (not exercising) the blood PO2 rarely falls below 40 mmHg. b. The PO2 and hemoglobin dissociation curve for myoglobin is to the left of fetal hemoglobin. c. The blood returning to the lungs is still 75% saturated with oxygen. d. A larger decrease in PO2 is needed for hemoglobin to drop from 100% to 75% O2 capacity than from 75% to 50% O2 capacity. e. During high metabolic activity the PO2 and hemoglobin dissociation curve would be expected to shift to the left of normal.arrow_forward
- Most oxygen transported in human blood______ . a. is bound to hemoglobin b. combines with carbon to form carbon dioxide c. is in the form of bicarbonate d. is dissolved in the plasmaarrow_forwardIn the alveoli Multiple Choice a)no exchange with the blood occurs. b) oxygen diffuses out of the blood while carbon dioxide diffuses into the blood. c) oxygen diffuses into the blood while carbon dioxide diffuses out of the blood. d) both oxygen and carbon dioxide diffuse into the blood. e) both oxygen and carbon dioxide diffuse out of the blood.arrow_forwardOxygen bars are beneficial at sea level to a. all individuals if the flow is to 2L per minute with 30% oxygen in the gas b. all individuals if the flow is about 3L per minute c. No one unless you have a pathology making your O2 hemoglobin saturation low to begin with d. Everyone regardless of the flowarrow_forward
- A 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_forwardIn an infant born prematurely, surfactant production may have not been adequate to maintain alveoli open after birth. What would that do to the compliance of the lungs? a. decrease it; making it more difficult to move air in and out the lungs b. increase it; making it more difficult to more air in and out the lungs c. keeps it the same would be seen with adequate surfactantarrow_forwardChickens also hyperventilate during hot weathers and make their egg brittle. To counter this, the poultry farmer should apply one of the following: a. carbon dioxide bombardment b. adding soda in drinking water c. paper bag method d. incubation of eggs Choose only one answer. Clue: Letter d is not the answer.arrow_forward
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