GIM Question 3

An elderly patient is admitted with a serum [Na+] of 120mmol/L. She is alert and oriented and appears well.

  1. What specific initial laboratory tests would you order to further delineate the cause of her hyponatremia?
  2. What treatment options would you consider if…
    • Your physical exam demonstrated she was euvolemic?
    • Your physical exam demonstrated she was hypervolemic?
    • Your physical exam demonstrated she was hypovolemic?
  3. How would your management change if this patient presented with new onset confusion, lethargy, a single episode of seizure, and a serum [Na+] 115mmol/L?

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