Osmolality (Urine)

Testing Laboratory

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

UOS

Test Code (Numeric Code)

0222

Laboratory Handling

Registration

See Additional Information section for Fluid Deprivation test information.

Separating

Freshly centrifuges supernatant aliquoted into a separate tube.

Laboratory

Do not use acidified urine.

Sample Stability

4 days at 4°C

Associated Tests

• Osmolality (Blood)

Synonyms

Urine Osmolality

Turnaround Time

8 hours

Specimen Type

• Urine

Specimen Requirements

Tube/Container Type:

Preferred

• BD Urine Tube (no additive)

Preferred Sample Volume (ml)

5

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• BD Urine Tube (no additive)

Preferred Sample Volume (ml)

5

Aliquot Instructions

Sample Type

• Urine

Additional Referral/Aliquot Information

Fluid Deprivation - Greenlane {Heparin, Urine - Number both the urine and serum with the same number - Place in the same bag together - Continue to use the worksheet - You still need to phone and fax the worksheet.}

Test Method

Performed in: LabPlus Automation
Principle: Freezing Point Depression

Uncertainty of Measurement

1%

Laboratory Notes:
Fluid Deprivation - AUCKLAND {Heparin, Plain, Urine - Samples are tested at Greenlane and only get Registered at Auckland - Do not use any other code for osmo's other than code below .}

Fluid Deprivation - Greenlane {Heparin, Urine - Number both the urine and serum with the same number - Place in the same bag together - Continue to use the worksheet - You still need to phone and fax the worksheet.}

Contact Information