A client with suspected pulmonary edema is undergoing diagnostic testing. Which laboratory parameter is often elevated in cases of heart failure-related pulmonary edema?
Serum creatinine
Blood glucose
Hemoglobin level
Serum potassium
The Correct Answer is A
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.
Nursing Test Bank
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 A
Explanation
A) Correct. Atrial fibrillation is a cardiac arrhythmia that can lead to heart failure, which is a common etiological factor for pulmonary edema.
B) Incorrect. Hypothyroidism is not typically a direct cause of pulmonary edema.
C) Incorrect. While COPD can lead to respiratory-related symptoms, it is not a direct cause of pulmonary edema.
D) Incorrect. Rheumatoid arthritis is not a known cause of pulmonary edema.
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