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 B
Explanation
A) Incorrect. A decreased respiratory rate is not typically associated with pulmonary edema, which often leads to increased respiratory effort.
B) Correct. Inspiratory crackles in the lung bases are indicative of fluid accumulation in the alveoli and are a common physical finding in pulmonary edema.
C) Incorrect. Increased breath sounds are not typically associated with pulmonary edema; instead, crackles or wheezing may be heard.
D) Incorrect. Diminished heart sounds are not a characteristic finding in pulmonary edema.
Correct Answer is A
Explanation
A) Correct. Serum creatinine levels can be elevated in cases of heart failure-related pulmonary edema, indicating impaired kidney function due to reduced cardiac output.
B) Incorrect. Blood glucose levels may be elevated in some individuals with diabetes but are not directly related to pulmonary edema.
C) Incorrect. Hemoglobin levels are not typically used to diagnose pulmonary edema; they are more related to oxygen-carrying capacity in the blood.
D) Incorrect. Serum potassium levels may be influenced by various factors but are not a primary indicator of pulmonary edema.
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