Medical MCQ-In a patient if administration of exogeneus vasopressin does not increase the osmolality of urine the likely cause is

In a patient if administration of exogeneus vasopressin does not increase the osmolality of urine the likely cause is

SIADH

Psychogenic polydipsia

Renal Hyposensitivity to ADH

ADH Deficiency

Question Category:

Medicine

Correct Answer:

Renal Hyposensitivity to ADH

Description:

Answer is C (Renal Hyposensitivity to ADH): Failure of urine osmolality to rise even after administration of exogenous ADH/vasopressin suggests a diagnosis of Nephrogenic Diabetes Insipidus due resistance to action of vasopressin on the Renal tubule (Renal Hyposensitivity to ADH).

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