Ryan was running his first marathon with a friend, and after drinking a lot of plain water, he dropped out of the race. At the hospital, he was diagnosed with hyponatremia and treated for
A) a wide range of problems resulting from his failure to release ADH.
B) dehydration of organ tissues, including the brain, due to water moving into the hypertonic blood supply.
C) a dangerous loss of fluid due to constant urination.
D) swelling of the brain due to low sodium levels.

Question

Quizplus · Accepted Answer

Hyponatremia refers to a decreased level of sodium in the blood, which can lead to swelling of the brain and other neurological symptoms. Drinking too much plain water without adequate electrolyte replacement can dilute the sodium in the blood, leading to hyponatremia.

Ryan Was Running His First Marathon with a Friend, and After