5th April 2024

A 32-year-old female with borderline personality disorder, bipolar disorder and unspecified feeding/eating disorder is being investigated for diabetes insipidus.

A 32-year-old female with borderline personality disorder, bipolar disorder and unspecified feeding/eating disorder is being investigated for diabetes insipidus. Her medication includes lithium carbonate 1g daily. A water deprivation test is performed with the results shown below. What do the results indicate?

Post dehydration osmolality (mOsm/kg)		Post DDAVP osmolality (mOsm/kg)
Serum	Urine	Urine
<295	> 600	>600

Select the SINGLE most appropriate option from the list below. Select ONE option only.

Complete Guide to Clinical Genetics ST3 Application and Recruitment (2027)

Written by Medibuddy. Last updated: October 2026. Clinical Genetics is

Clinical Genetics ST3

Complete Guide to Clinical Radiology ST3 Application and Recruitment (2027)

Recruitment paused: NHS England is not running Clinical Radiology ST3+ recru

Clinical Radiology ST3

Complete Guide to Paediatric Surgery ST3 Application and Recruitment in United Kingdom (2026)

Written by Medibuddy. Last updated: October 2026. If you’re planning

Paediatric Surgery ST3

Take your subscriptions with you

Our mobile app allows you to access your interview and exam question banks wherever you are.