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
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Correct. Pink, frothy sputum, often described as "pink froth," is indicative of severe pulmonary edema with the presence of blood-tinged fluid in the alveoli.
B) Incorrect. A low-grade fever is not a typical sign of pulmonary edema and may indicate another underlying condition.
C) Incorrect. Clear breath sounds throughout the lung fields are not indicative of severe pulmonary edema, which often presents with crackles.
D) Incorrect. The absence of peripheral edema does not necessarily reflect the severity of pulmonary edema; it may be related to factors other than heart failure.
Correct Answer is C
Explanation
A) Incorrect. Pulmonary edema is not a bacterial lung infection.
B) Incorrect. Pleuritis (inflammation of the pleura) is a different condition unrelated to pulmonary edema.
C) Correct. Pulmonary edema is characterized by the accumulation of excess fluid in the lungs, often in the alveoli and interstitial spaces.
D) Incorrect. A blockage in the coronary arteries is related to myocardial infarction (heart attack) and is not the primary characteristic of pulmonary edema.
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