Sample type: Urine - Random
Test name: Osmolality
Condition / Indication: SIADH, Hyponatraemia
Special precautions & notes: If requesting analysis as part of a water deprivation test, please see the protocol below.
Reference range: Interpretation depends on paired serum osmolality, sodium levels, and fluid status.
Container: Urine plain 5ml (Beige top)
Alternative container: Universal (white top)
Ideal volume (mL): 5 mL
Referred outside NBT for analysis? No
Discipline: Clinical Biochemistry
Section: Automated Laboratory
Turnaround time: Hospital patients 8 hours; GP patients 24 hours
- Water Deprivation Test in Adults.pdf103.01 KB