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
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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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Correct. Pulmonary edema can lead to impaired gas exchange, resulting in respiratory acidosis, characterized by a decreased pH on ABG analysis.
B) Incorrect. Pulmonary edema typically leads to decreased oxygenation, so an elevated PaO2 would not be consistent with this condition.
C) Incorrect. A decreased PaCO2 is more commonly associated with respiratory alkalosis and is not a primary finding in pulmonary edema.
D) Incorrect. Increased bicarbonate (HCO3-) levels are more indicative of metabolic alkalosis and are not typically associated with pulmonary edema.
Correct Answer is C
Explanation
A) Incorrect. Sudden onset of severe chest pain is not a typical finding in chronic pulmonary edema.
B) Incorrect. Profuse hemoptysis is not a common symptom of chronic pulmonary edema.
C) Correct. Bilateral pitting edema in the lower extremities is a common sign of fluid retention in chronic pulmonary edema.
D) Incorrect. While an increased heart rate may be present, palpitations are not a typical finding in chronic pulmonary edema.
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