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Osmolality Urine

Alternative Names:

Urine Osmolality

Laboratory:

Clinical Biochemistry

Test Code:

UOSM

Specimen Types:

Urine random

Container Types:

Plain 70mL pot

Adults Volume or Mass:

1 mL

Minimum/Paediatric Volume or Mass:

1 mL

Collection & Request Instructions:

1 mL (minimum) random specimen in PLAIN container.

Transport Instructions between Sites and/or Laboratories:

Room Temperature

Assay Frequency:

24/7

MBS Rebatable:

Yes

MBS Item No.:

66563

Additional Notes:

Reference Interval: 50—1200 mmol/kg

After 12h fluid restriction: >850 mmol/kg

R.I. Source: Wong LL & Verbalis JG. Endocrinol Metab Clin North AM 2022; 31(1):121-140, Rose BD & Post TW. Clin physiology of acid base and electrolyte disorders 2001