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Test Code: CORT Preferred Name Cortisol - serum

Results Avail After Hours:Yes

Urgent:1.5 hours

Test Frequency:All hours

Routine:4 hours

MBS Status:Medicare Item

Min. Re-Test Interval:N/A

Public price:

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Test Tubes

Specimen Type	Specimen Volume	Tube Type
Blood (adult)	4 mL	SST with gel 8.5 mL (Dark Yellow Top)
Blood (paediatric)	1 mL	2x SST with gel 600 uL Paed (Red or Yellow top)
Blood (neonatal)	500 µL	SST with gel 600 uL Paed (Red or Yellow top)

COLLECTION NOTES

May be fasting request. Usually collected between 6 am and 9.00 am.
When diurnal cortisol is required, collection times will be between 6 am and 9.00 am and then at 4.00 pm.
Venipuncture should be done with minimum patient stress for accurate levels.

GENERAL NOTES

APPLICATION: Assessment of adrenocortical function as part of a suppression or stimulation test. Random cortisol assay is only indicated as an initial test to exclude pituitary insufficiency or in the confirmation of Addisonian crisis.