Electrolyte Management in Critical Care · NCLEX Exam

What is the correct management approach for a patient with low serum magnesium (0.9 mg/dL) in the ICU?

  1. Wait for symptoms to appear before starting replacement
  2. Replace magnesium promptly, as low levels worsen ICU outcomes
  3. Magnesium replacement is never necessary in ICU patients
  4. Only oral magnesium should ever be used in the ICU
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Correct answer: Replace magnesium promptly, as low levels worsen ICU outcomes

Hypomagnesemia is common in ICU and is associated with worse outcomes, so monitoring and timely replacement is important.

Difficulty: Easy Question 6 of 15

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