Hickey-Hare test is used to diagnose -: (A) Congenital pyloric stenosis, (B) Duodenal atresia, (C) Achlasia cardia, (D) Diabetes insipidus
Answer is D. Ans. is 'd' i.e., Diabetes insipidus Hypeonic saline infusion test that induces plasma hyperosmolality. Used for distinguishing between different causes of polyuria and polydipsia.