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.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Incorrect. Elevated body temperature is not a typical manifestation of pulmonary edema.
B) Incorrect. Bradycardia is not a common finding in pulmonary edema.
C) Correct. Crackles in the lung fields are a hallmark sign of pulmonary edema due to the accumulation of fluid in the alveoli.
D) Incorrect. Hypertension is not a typical finding in pulmonary edema; it is more commonly associated with conditions like heart failure.
Correct Answer is A
Explanation
A) Correct. A CT scan can help identify the presence of fluid in the alveoli and interstitial spaces of the lungs, making it a valuable tool in diagnosing pulmonary edema.
B) Incorrect. MRI is not typically used to diagnose pulmonary edema, as it may not provide as clear an image of lung tissue as a CT scan.
C) Incorrect. PET scans are more commonly used in oncology to detect metabolic activity and are not typically used for pulmonary edema diagnosis.
D) Incorrect. While ultrasound can be useful in assessing pleural effusions, it may not provide the same level of detail as a CT scan for diagnosing pulmonary edema.
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