56. A 70-year-old man is brought to the emergency department because ofsevere shortness of breath for 4 hours. He has had fatigue for6 months and moderate shortness of breath for 2 weeks. On arrival, heis 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 thelung fields. There is mild pedal edema. An increase in which of thefollowing is the most likely cause of this patient's dyspnea?↑P₂OA) Capillary diffusion coefficientB) Capillary hydrostatic pressureOC) Capillary oncotic pressureD) Interstitial hydrostatic pressureE) Interstitial oncotic pressure

Pulmonary Edema: Pulmonary edoema, sometimes referred to as pulmonary congestion, is an excessive…

Answered: 56. A 70-year-old man is brought to the…

Cardiopulmonary Anatomy & Physiology

7th Edition

ISBN:9781337794909

Author:Des Jardins, Terry.

Publisher:Des Jardins, Terry.

Chapter2: Ventilation

Section: Chapter Questions

Problem 3RQ: 3. In the normal individual in the upright position 1. the negative pleural pressure is greater (i....

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Similar questions

If a patient is receiving an FIO2 of 0.60 on a day when the barometric pressure is 725 mm Hg, and if the Paco2 is 50 mm Hg, what is the patients alveolar oxygen tension (PAo2)? A. 177 mm Hg B. 233 mm Hg C. 344 mm Hg D. 415 mm Hg
The pleura that surrounds the lungs consists of two layers, the ________. visceral and parietal pleurae. mediastinum and parietal pleurae. visceral and mediastinum pleurae. none of the above
A full complement of mature alveoli are present by ________. early childhood, around 8 years of age birth 37 weeks 16 weeks
The mean intraluminal pressure in the pulmonary capillaries is A. 5 mm Hg B. 10 mm Hg C. 15 mm Hg D. 20 mm Hg
The pressure difference between the intra-alveolar and intrapleural pressures is called ________. atmospheric pressure pulmonary pressure negative pressure trans pulmonary pressure
The residual volume/total lung capacity ratio in healthy men ages 20 to 30 years is A. 15% B. 20% C. 25% D. 30%
The peripheral chemoreceptors are significantly activated when the PO2 decreases to about A. 75 mm Hg B. 70 mm Hg C. 65 mm Hg D. 60 mm Hg
Assuming that pressure remains constant, if the radius of a bronchial airway through which gas glows at a rate of 400 L/min is reduced to one-half of its original size, the flow through the bronchial airway would change to A. 10 L/min. B. 25 L/min. C. 100 L/min. D. 200 L/min.
Restrictive airway diseases. increase the compliance of the lung decrease the compliance of the lung increase the lung volume decrease the work of breathing
3. In the normal individual in the upright position 1. the negative pleural pressure is greater (i. e., more negative) in the upper lung regions. 2. the alveoli in the lower lung regions are larger than the alveoli in the upper lung regions. 3. ventilation is more effective in the lower lung regions. 4. the pleural pressure is always below atmospheric pressure during a normal ventilator cycle. A. 1 and 2 only B. 2 and 3 only C. 2,3 and 4 only D. 1,3, and 4 only
LF, a 34 year old white male, presented to the emergency room complaining of acute and severe shortnessof breath and intense chest tightness. LF’s speech was choppy and breathing was very rapid and erratic,punctuated by noticeable wheezing. LF’s medical records included the results of pulmonary functiontesting he had undergone six months beforeHis medical records also indicated prior admission for respiratory symptoms and a history of poorly-controlled asthma.LF received high-dose bronchodilator medication through use of a valved holding chamber. This wasfollowed by intravenous glucocorticoids and nebulized bronchodilators every two hours for a twelve-hourperiod, followed by nebulized bronchodilators every four hours for a forty-eight hour period.After discharge from the hospital, LF was provided a take-home flow meter to monitor his lung function.Table 4 shows LF’s PEFR results during a 30-day period.Table 4. Peak flow monitoring from day 1-30 post-discharge. All PEFR values are given…
43 A 55-year-old woman is brought to the emergency department because of chest pain and shortness of breath for 3 hours Her pulse is 125/min, respirations are 28/min, and blood pressure is 80/40 mm Hg Physical examination shows poor perfusion to the extremities Pulmonary angiography shows complete blockage of blood flow to the left lung Which of the following labeled points on the ventilation-perfusion line of the oxygen-carbon dioxide graph best corresponds to the alveolar blood gas of the left lung of this patient? PCO₂ (mm Hg) A) B) B с Normal PO₂ (mm Hg) D)

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