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Corticosteroid-binding Globulin (CBG)

CPT 84449
Synonyms
  • CBG
  • Corticosteroid-binding Globulin (CBG) Transcortin

Test Details

Methodology

Radioimmunoassay (RIA)

Result Turnaround Time

6 - 10 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Specimen Requirements

Specimen

Serum, frozen

Volume

1 mL

Minimum Volume

0.5 mL (Note: This volume does not allow for repeat testing.)

Container

Red-top tube or gel-barrier tube

Collection Instructions

Separate serum from cells within one hour of collection. Transfer specimen to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Stability Requirements

Temperature

Period

Room temperature

2 days

Refrigerated

2 days

Frozen

300 days

Storage Instructions

Freeze.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
500130 Corticosteroid Bind.Glob(CBG) 3033-8 500131 Cort.Bind.Glob.(CBG) mg/dL 3033-8
Order Code500130
Order Code NameCorticosteroid Bind.Glob(CBG)
Order Loinc3033-8
Result Code500131
Result Code NameCort.Bind.Glob.(CBG)
UofMmg/dL
Result LOINC3033-8