Ace the Certified Emergency Nurse (CEN) Challenge 2025 – Energize Your Nursing Future!

Question: 1 / 400

Which electrolyte abnormality often co-exists with hypokalemia?

Hypercalcemia

Hyponatremia

Hypomagnesemia

Hypomagnesemia frequently co-exists with hypokalemia due to several physiological interactions between magnesium and potassium in the body. Potassium is crucial for maintaining cellular function, and its levels can be influenced by magnesium. When magnesium levels are low, it can lead to increased renal loss of potassium, exacerbating hypokalemia. Additionally, magnesium plays a role in the sodium-potassium ATPase pump, which is vital for maintaining potassium balance. Thus, when magnesium is insufficient, it can disrupt the normal function of this pump and lead to further potassium depletion. This relationship highlights why patients with hypokalemia are often evaluated for magnesium levels and possible hypomagnesemia, making it the correct answer in this context.

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Hyperkalemia

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