A 68-year-old man is brought to your emergency room in July after concerned neighbors, who had not seen him for several days, found him collapsed on his living room floor. The temperature inside the house was about 105^oF. The patient was barely arousable. His body temperature is 40^oC, his skin and mucus membranes are dry, and his blood pressure is low. Which of the following laboratory results would you expect to find? A) Elevated aldosterone level B) Decreased renin level C) Elevated urine Na⁺ concentration D) Decreased antidiuretic hormone (ADH) levels E) Low urine osmolality

Question

Quizplus · Accepted Answer

The patient is likely suffering from heat stroke and dehydration, which would lead to elevated aldosterone levels as the body attempts to conserve sodium and water to counteract the low blood pressure and dehydration.

A 68-Year-Old Man Is Brought to Your Emergency Room in July