A 42-year-old solicitor undergoes a water deprivation test in the Endocrinology outpatient setting after presenting with polydipsia, polyuria, hypernatraemia and dilute urine. | Medibuddy
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5th April 2024

A 42-year-old solicitor undergoes a water deprivation test in the Endocrinology outpatient setting after presenting with polydipsia, polyuria, hypernatraemia and dilute urine.

A 42-year-old solicitor undergoes a water deprivation test in the Endocrinology outpatient setting after presenting with polydipsia, polyuria, hypernatraemia and dilute urine. Given his results shown below, what is the appropriate management? 

Post dehydration osmolality (mOsm/kg) Post DDAVP osmolality (mOsm/kg)
Serum Urine Urine
>300 <300 >550

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