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56. A 70-year-old man is brought to the emergency department because of severe shortness of breath for 4 hours. He has had fatigue for 6 months and moderate shortness of breath for 2 weeks. On arrival, he is pale and diaphoretic and is seated straight upright on the stretcher. His respirations are 30/min, and blood pressure is 110/90 mm Hg. Inspiratory moist crackles are heard over the posterior lower half of the lung fields. There is mild pedal edema. An increase in which of the following is the most likely cause of this patient's dyspnea? ↑P₂ OA) Capillary diffusion coefficient B) Capillary hydrostatic pressure OC) Capillary oncotic pressure D) Interstitial hydrostatic pressure E) Interstitial oncotic pressure

56. A 70-year-old man is brought to the emergency department because of severe shortness of breath for 4 hours. He has had fatigue for 6 months and moderate shortness of breath for 2 weeks. On arrival, he is pale and diaphoretic and is seated straight upright on the stretcher. His respirations are 30/min, and blood pressure is 110/90 mm Hg. Inspiratory moist crackles are heard over the posterior lower half of the lung fields. There is mild pedal edema. An increase in which of the following is the most likely cause of this patient's dyspnea? ↑P₂ OA) Capillary diffusion coefficient B) Capillary hydrostatic pressure OC) Capillary oncotic pressure D) Interstitial hydrostatic pressure E) Interstitial oncotic pressure

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach
Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach
5th Edition
ISBN:9781285244662
Author:White
Publisher:White
Chapter29: Neonatal Mechanical Ventilation
Section: Chapter Questions
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56. A 70-year-old man is brought to the emergency department because of severe shortness of breath for 4 hours. He has had fatigue for 6 months and moderate shortness of breath for 2 weeks. On arrival, he is pale and diaphoretic and is seated straight upright on the stretcher. His respirations are 30/min, and blood pressure is 110/90 mm Hg. Inspiratory moist crackles are heard over the posterior lower half of the lung fields. There is mild pedal edema. An increase in which of the following is the most likely cause of this patient's dyspnea? ↑P₂ OA) Capillary diffusion coefficient B) Capillary hydrostatic pressure OC) Capillary oncotic pressure D) Interstitial hydrostatic pressure E) Interstitial oncotic pressure
Transcribed Image Text:56. A 70-year-old man is brought to the emergency department because of severe shortness of breath for 4 hours. He has had fatigue for 6 months and moderate shortness of breath for 2 weeks. On arrival, he is pale and diaphoretic and is seated straight upright on the stretcher. His respirations are 30/min, and blood pressure is 110/90 mm Hg. Inspiratory moist crackles are heard over the posterior lower half of the lung fields. There is mild pedal edema. An increase in which of the following is the most likely cause of this patient's dyspnea? ↑P₂ OA) Capillary diffusion coefficient B) Capillary hydrostatic pressure OC) Capillary oncotic pressure D) Interstitial hydrostatic pressure E) Interstitial oncotic pressure
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