Question 25 Which of the following is true re: oxygen saturation curves? Hemoglobin saturation curves shows a loading zone and a buffer zone Fetal hemoglobin demonstrates a higher affinity for axygen than adult hemoglobin The further a saturation curve for an oxygen carrier goes to the left, the affinity for oxygen also gets higher Hemoglobin can give up oxygen faster based on environmental factors, a process that shows the hemoglobin 02 saturation curve as shifting to the right, and known as the Bohr shift. All the statements listed for this question are correct

Question 25 Which of the following is true re: oxygen saturation curves? Hemoglobin saturation curves shows a loading zone and a buffer zone Fetal hemoglobin demonstrates a higher affinity for axygen than adult hemoglobin The further a saturation curve for an oxygen carrier goes to the left, the affinity for oxygen also gets higher Hemoglobin can give up oxygen faster based on environmental factors, a process that shows the hemoglobin 02 saturation curve as shifting to the right, and known as the Bohr shift. All the statements listed for this question are correct

Cardiopulmonary Anatomy & Physiology

7th Edition

ISBN:9781337794909

Author:Des Jardins, Terry.

Publisher:Des Jardins, Terry.

Chapter15: Hemodynamic Measurements

Section: Chapter Questions

Problem 3RQ

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QUESTION 26 Which statement regarding the figure is correct? Atmospheric pressure (Patm) 760 mmHg -F Thoracic wall D 756 В 760 Lung Diaphragm Alveolar pressure (Paly) The transmural pressure labeled A will always be a positive value The alveolar pressure causes the pressure labeled D to change O The pressure labeled B is equal in magnitude to the chest wall recoil The transmural pressure labeled C is opposing the lung recoil
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 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 46 What is hemoglobin saturation at altitude (assume high altitude) with a PO2 of 50 mmHg? 55 83.5 97.5 100 DO e
Question 12 Who would have the highest hematocrit? O normal female living at high altitude O person with iron deficient anemia O marathon runner (female) living at high altitude O normal female living at sea level
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 1 Which of the following reactions is more likely to occur in systemic capillaries than in pulmonary capillaries? OA. Hb + O₂ -> HbO2 O E. HbCO, -- Hb+ CO, O C. HbO₂ -> Hb + O₂ O D.HbCO2 → Hb + HCO3 E. HbH -> Hb + H* 4
Figure 5 shows oxyhemoglobin dissociatlon curves at pH 7.2 and pH 7.4. Which of the following is true at PO2 less than 40 mm Hg? 27. % saturation af haemogiobin 100 pH 7.4 80 60 pH 7.2 40 + 20 10 20 30 40 50 60 70 Po; (mm Hg) Figure 5 A. Hemoglobin retains less O2 at pH 7.4 compared to pH 7.2. B. Hemoglobin retains less O2 at pH 7.2 compared to pH 7.4. C. The release of O2 from hemoglobin is not influenced by the production of CO2. D. At pH 7.2 where CO2 production is less than pH 7.4, hemoglobin releases less O2.
Question 24 A 16 year-old client has had asthma for ten years. The client regularly uses their peak flow meter to determine their current peak flow zone. Today, the client notes that they are in the red zone. What does this mean? Question 24 options: the client needs to take a short acting bronchodilator and seek medical assistance the client needs to replace their peak flow meter as it is malfunctioning the client continues to maintain good control of their asthma symptoms the client should take a short acting bronchodilator and repeat peak flow readin
question: In a red blood cell entering the left atrium in a human, hyperventilation leads to a decrease in the amount of CO2 bound to hemoglobin but little or no increase in the amount of O2 bound to hemoglobin. answer should clearly state whether or not the statement is correct and then concisely explain why. the answer should be like more than three but less than 5 sentences and address all of the points in the statement. Here is an example: Both transmembrane carrier proteins and transmembrane channel proteins can mediate active transport of a hydrophilic solute through a cell plasma membrane. This statement is incorrect. Movement of a solute through a channel protein is always passive, whereas carrier-mediated transmembrane transport can be either passive or active. A transmembrane channel protein creates a pore through the membrane allowing for simple diffusion of a hydrophilic solute down a concentration gradient through the membrane. In contrast, transmembrane carrier…
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 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).