A nurse is caring for a client undergoing diagnostic evaluation for suspected pulmonary edema. Which finding on an arterial blood gas (ABG) analysis is consistent with pulmonary edema?
Decreased pH (acidosis)
Elevated partial pressure of oxygen (PaO2)
Decreased partial pressure of carbon dioxide (PaCO2)
Increased bicarbonate (HCO3-) levels
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A) Incorrect. Routine physical activity does not typically precipitate the development of pulmonary edema.
B) Incorrect. Recent vaccination is not a common precipitating factor for pulmonary edema.
C) Correct. Severe hypertension can increase the workload of the heart, leading to left ventricular failure, which is a common precipitating event for pulmonary edema.
D) Incorrect. Controlled diabetes is not a precipitating factor for pulmonary edema; uncontrolled diabetes can have cardiovascular implications but is not directly related to this condition.
Correct Answer is B
Explanation
A) Incorrect. Caffeine, when consumed in moderation, is not a known risk factor for pulmonary edema.
B) Correct. Excessive alcohol consumption can lead to heart-related issues, including alcoholic cardiomyopathy, which can increase the risk of pulmonary edema.
C) Incorrect. While nicotine is harmful to the cardiovascular system, it is not a direct cause of pulmonary edema.
D) Incorrect. While marijuana use can have various health effects, it is not a known direct risk factor for pulmonary edema.
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