Which of the following statements about furosemide and potassium is true?
Furosemide can cause hyperkalemia.
Furosemide is contraindicated in patients with potassium allergies.
Furosemide can increase potassium levels in the body.
Furosemide is a diuretic that may require potassium supplementation
The Correct Answer is D
A. Furosemide typically causes hypokalemia (low potassium), not hyperkalemia.
B. There is no such thing as a potassium allergy; this statement is incorrect.
C. Furosemide does not increase potassium levels; it promotes potassium excretion.
D. Furosemide is a loop diuretic that increases the excretion of potassium in urine, so patients often require potassium supplementation to prevent hypokalemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While the brainstem does influence cardiovascular function, brainstem compression affects multiple critical systems, not just cardiovascular.
B. The medulla oblongata in the brainstem contains the respiratory control centers. Compression can disrupt respiratory drive, leading to respiratory arrest, making this the correct answer.
C. The gastrointestinal system is not primarily affected by brainstem compression.
D. This is false, as brainstem compression severely affects respiratory function due to involvement of respiratory centers.
Correct Answer is B
Explanation
A. Rejuvenation –. This is not a physiological term used in the context of ICP or brain compensation.
B. Autoregulation –This is the brain’s ability to maintain consistent cerebral blood flow (CBF) despite changes in systemic blood pressure. In early stages of increased ICP, autoregulation helps maintain oxygen and nutrient delivery to brain tissue by adjusting cerebral vessel diameter.
C. Percolation –This term is not relevant in neurophysiology or ICP management.
D. Demarcation –This refers more to distinguishing boundaries between tissues (e.g., in gangrene), not compensatory mechanisms for ICP.
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