Hypotonicity occurs when excess H₂O without solute is retained in the body as a result of the syndrome of inappropriate vasopressin secretion.

Question

Hypotonicity occurs when excess H₂O without solute is retained in the body as a result of the syndrome of inappropriate vasopressin secretion.​

Quizplus · Accepted Answer

Hypotonicity (also known as hyponatremia) can indeed result from excess water retention without a corresponding increase in solute concentration. This can occur in certain medical conditions, such as SIADH (syndrome of inappropriate antidiuretic hormone secretion), which causes an overproduction of vasopressin (a hormone that helps regulate fluid balance in the body). When too much vasopressin is present, the body retains too much water, leading to dilution of sodium and other electrolytes in the blood, and potentially causing various symptoms such as headache, nausea, confusion, seizures, and coma.

Hypotonicity Occurs When Excess H₂O Without Solute Is Retained in the Body