A client with pulmonary edema complains of a feeling of "suffocation." Which physiological mechanism contributes to this sensation in pulmonary edema?

Hyperventilation leading to respiratory alkalosis

Reduced cardiac output resulting in bradycardia

Impaired oxygen diffusion causing hypoxemia

Elevated blood pressure and hypertension

Answer and Explanation

The Correct Answer is C

A) Incorrect. Hyperventilation leading to respiratory alkalosis may occur in response to respiratory distress but is not the primary cause of the sensation of "suffocation."

B) Incorrect. Reduced cardiac output may be a consequence of pulmonary edema, but it does not typically result in bradycardia, nor is it the primary cause of the sensation described.

C) Correct. In pulmonary edema, fluid accumulation in the alveoli impairs oxygen diffusion, leading to hypoxemia, which contributes to the sensation of "suffocation."

D) Incorrect. Elevated blood pressure and hypertension can be associated with heart failure but are not the primary factors contributing to the sensation of "suffocation" in pulmonary edema.

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Correct Answer is C

Explanation

A) Incorrect. A persistent dry cough is not a typical symptom of acute pulmonary edema.

B) Incorrect. Productive cough with green sputum is more suggestive of a respiratory infection than acute pulmonary edema.

C) Correct. Sudden-onset severe shortness of breath, often described as "air hunger," is a hallmark symptom of acute pulmonary edema.

D) Incorrect. Sharp, stabbing chest pain is not a primary symptom of acute pulmonary edema but may be present in some cases.

A. Facilitating gas exchange B. Regulating blood pressure C. Removing excess interstitial fluid D. Producing surfactant

Correct Answer is C

Explanation

A) Incorrect. The primary role of the lymphatic system in the lungs is not gas exchange but rather fluid removal.

B) Incorrect. While the lymphatic system plays a role in overall fluid balance, it is not primarily responsible for regulating blood pressure.

C) Correct. The lymphatic system helps remove excess interstitial fluid from the lungs, preventing fluid accumulation and contributing to fluid balance.

D) Incorrect. Surfactant production is primarily related to maintaining lung compliance and preventing alveolar collapse but is not a primary function of the lymphatic system.

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A client with pulmonary edema complains of a feeling of "suffocation." Which physiological mechanism contributes to this sensation in pulmonary edema?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is C

Explanation

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