Review Question - QID 220676

A 26-year-old man is brought to the emergency room because he collapsed in the gym after working out. He was running on the treadmill when he felt faint and collapsed shortly thereafter. The patient is a wrestler, and he has an upcoming match for which he needs to lose some weight. He has no significant medical history and does not take any medications. His temperature is 98.6°F (37°C), blood pressure is 107/62 mmHg, pulse is 105/min, and respirations are 12/min with an oxygen saturation of 98% on room air. The patient has dry mucosa with cracked lips. Labs are obtained with the following results:
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