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 mL | Plasma | EDTA (Lavender) | Frozen | Centrifuge 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 mL | Plasma | Sodium or Lithium heparin (Green) | Frozen | Centrifuge 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 |
|---|---|
| Ambient | 1 day |
| Frozen | 90 days |
| Refrigerated | 1 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.