Pathology Handbook

Cortisol (Urine free)

Synonyms

UFC, UFF

Clinical Indications

In investigation of possible Cushings disease

Test Includes

-

Request Form 

Request on ICE

State drug therapy on request form

Availability

On request.

Specific Criteria

None

Patient Preparation

None

Turnaround Time

Weekly

Specimen

24 hour urine

Container

Plain 24 hour urine container, with no preservative

Collection

A 24 hour collection of urine is required

Causes for Rejection

Unlabelled sample

Incomplete collection

Incorrect specimen container 

Reference Range

Less than 280 nmol/24 hours

A normal result does not exclude Cushings but makes it unlikely