Which effect indicates the patient is experiencing an adverse effect of the loop diuretic Bumex (bumetanide)?

Which effect indicates the patient is experiencing an adverse effect of the loop diuretic Bumex (bumetanide)?

• A. Urine output of 90 cc/mL
• B. Serum potassium value of 3.0 mEq/L
• C. Blood glucose value of 160 mg/dL
• D. Electrocardiogram showing normal QRS complex

Answer: (B)

In the context of loop diuretics like Bumex (bumetanide), a significant adverse effect is the potential for electrolyte imbalances, particularly hypokalemia, which is a low serum potassium level. A serum potassium value of 3.0 mEq/L is indicative of hypokalemia, a condition that can lead to serious complications such as cardiac arrhythmias due to the essential role potassium plays in cardiac function. Loop diuretics increase the excretion of sodium and water but also tend to cause the loss of potassium. Therefore, monitoring potassium levels in patients on Bumex is crucial. A serum potassium level below the normal range (usually 3.5 to 5.0 mEq/L) can strongly suggest an adverse effect of the medication, thus correlating with the situation presented in the question. While urine output, blood glucose levels, and the electrocardiogram findings are important considerations in overall assessment, they do not directly indicate an adverse effect that is commonly associated with the use of loop diuretics like Bumex. The normal QRS complex on an ECG would suggest normal cardiac conduction, and urine output values would not specifically indicate a harmful effect. The blood glucose level being elevated may signal another issue but is not

In the context of loop diuretics like Bumex (bumetanide), a significant adverse effect is the potential for electrolyte imbalances, particularly hypokalemia, which is a low serum potassium level. A serum potassium value of 3.0 mEq/L is indicative of hypokalemia, a condition that can lead to serious complications such as cardiac arrhythmias due to the essential role potassium plays in cardiac function.

Loop diuretics increase the excretion of sodium and water but also tend to cause the loss of potassium. Therefore, monitoring potassium levels in patients on Bumex is crucial. A serum potassium level below the normal range (usually 3.5 to 5.0 mEq/L) can strongly suggest an adverse effect of the medication, thus correlating with the situation presented in the question.

While urine output, blood glucose levels, and the electrocardiogram findings are important considerations in overall assessment, they do not directly indicate an adverse effect that is commonly associated with the use of loop diuretics like Bumex. The normal QRS complex on an ECG would suggest normal cardiac conduction, and urine output values would not specifically indicate a harmful effect. The blood glucose level being elevated may signal another issue but is not