18 OH Corticosterone




Test Mnemonic

18OHC

CPT Codes

  • 82542 - QTY (1)

LOINC ®

1674-1

Aliases

  • 18 Hydroxy B Steroid

Performing Laboratory

LabCorp


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
1 mL    Note: Submitting the minimum volume does not allow for repeat testing.

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
3 mLPlasmaEDTA (Lavender) FrozenCentrifuge and transfer plasma into a standard plastic aliquot tube within 45 minutes of collection. Separate specimens must be submitted when multiple tests are ordered.
3 mLPlasmaSodium or Lithium heparin (Green) FrozenCentrifuge and transfer plasma into a standard plastic aliquot tube within 45 minutes of collection. Separate specimens must be submitted when multiple tests are ordered.

Stability

Environmental Condition Description
Ambient1 day
Frozen90 days
Refrigerated1 day

Days Performed

Mon

Turnaround Time

8 - 13 days

Methodology

Name Description
High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS) 

Reference Range

18 OH Corticosterone
Sex Age From Age To Type Range Range Unit
       Premature (26 - 28 Weeks): Day 4: 10 - 670 ng/dL 
       Premature (31 - 35 Weeks): Day 4: 57 - 410 ng/dL 
       Full-term Day 3: 31-546 ng/dL 
       Full-Term (31 Days - 11 Months): 5 - 220 ng/dL  
       12 - 23 Months: 18 - 155 ng/dL  
       24 Months to 9 Years: 6 - 85 ng/dL  
       10 to 14 Years: 10 - 72 ng/dL  
       Adults: 9 - 58 ng/dL  
       8 a.m. supine: 4 - 21 ng/dL 
       8 a.m. upright: 5 - 46 ng/dL 

Special Info

Separate specimens must be submitted when multiple tests are ordered.