After a long run, a 30-year-old marathon runner presents to the hospital with dizziness and confusion | Medibuddy
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15th August 2023

After a long run, a 30-year-old marathon runner presents to the hospital with dizziness and confusion

After a long run, a 30-year-old marathon runner presents to the hospital with dizziness and confusion. His heart rate is 120 bpm, and his blood pressure is 95/60 mmHg. Laboratory tests reveal increased serum osmolality and elevated sodium.

Which of the following is the most probable cause of his symptoms?

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