A nurse is assisting with the diagnostic workup of a client with suspected pulmonary edema. Which imaging modality can help identify the presence of fluid in the alveoli and interstitial spaces of the lungs?

Computed tomography (CT) scan

Magnetic resonance imaging (MRI)

Positron emission tomography (PET) scan

Ultrasound

Answer and Explanation

The Correct Answer is A

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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Correct Answer is A

Explanation

A) Correct. Increased hydrostatic pressure in pulmonary capillaries, often due to left ventricular failure, leads to the filtration of fluid from the capillaries into the alveoli and interstitial spaces, causing pulmonary edema.

B) Incorrect. Decreased capillary permeability is not typically a primary factor in the development of pulmonary edema.

C) Incorrect. Enhanced lymphatic drainage from the lungs is not a primary mechanism responsible for the accumulation of fluid in pulmonary edema.

D) Incorrect. Elevated colloid osmotic pressure in pulmonary vessels would oppose fluid accumulation in the alveoli and is not a primary cause of pulmonary edema.

A. Pink, frothy sputum B. Low-grade fever C. Clear breath sounds throughout the lung fields D. Absence of peripheral edema

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.

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A nurse is assisting with the diagnostic workup of a client with suspected pulmonary edema. Which imaging modality can help identify the presence of fluid in the alveoli and interstitial spaces of the lungs?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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