Corticosteriod Binding Globulin, Plasma / Serum

Department

Endo/Steroid Lab

Delphic Registration Code

CBG

Turnaround Time

6 weeks

Test Code

3844

Specimen Type

• Serum
• Plasma

Specimen Requirements

Tube/Container Type:

Preferred

• EDTA (Lavender Cap)

Acceptable

• Serum (Red Cap)
• SST II (Gold Cap)
• Lithium Heparin - Non-gel (Green Cap)
• Lithium Heparin - Gel (Green Cap)

Aliquot Instructions

Minimum Volume (ml)

0.1

Transport to Lab

Ambient (8 - 24 degrees Celsius)
If overnight - Frozen

Interpretation

Steroid Laboratory Phone 03 3640 888

For results please contact Canterbury Health Laboratories ph. 03 364 0300.

Reference Intervals

300 – 1300 nmol/L normal range. Elevated in pregnancy and oral contraceptive use.

Test Method

Sandwich ELISA

Non-Funded Test Cost

$35.66 (Exclusive of GST)

Billing Code

3844

Uncertainty of Measurement:
+/- 100 nmol/L range 0-500 nmol/L
+/- 20% for >500 nmol/L

If cortisol is also requested then the free cortisol index is also reported. Normal 20 - 120.

Reference; Lewis JG, Lewis MG & Elder PA. An enzyme-linked immunosorbent assay for corticosteroid- binding globulin using monoclonal and polyclonal antibodies: decline following synthetic ACTH. Clin Chim Acta; 328: 121-128,2003.

Contact Information

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