Condition

Condition

Hypopituitarism: vasopressin (central diabetes insipidus)

Stimulation Test

Water deprivation test: diabetes insipidus (DI) may be central (lack of ADH) or nephrogenic (resistance to ADH; due to lithium use, severe hypokalemia, or genetic disease). Water deprivation should increase the Posm (hypernatremia, _serum Na+ _ TBNa+/__ T

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