Test Details
Methodology
Mass spectrometry (MS)
Result Turnaround Time
5 - 12 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 (preferred) or plasma, frozen
Volume
3 mL
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Gel-barrier tube, lavender-top (EDTA) tube, or green-top (heparin) tube
Collection Instructions
Separate serum or plasma from cells within 45 minutes of collection. Send serum in a plastic transport tube. 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 | 1 day |
Refrigerated | 1 day |
Frozen | 90 days |
Reference Range
• Premature (26 to 28 weeks): day 4: 10−670 ng/dL
• Premature (31 to 35 weeks): day 4: 57−410 ng/dL
• Full-term Day 3: 31-546 ng/dL
• Full-term (31 days to 11 months): 5−220 ng/dL
• 12 to 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
• 8:00 AM Supine: 4-21 ng/dL
• 8 AM supine upright: 5−46 ng/dL
Storage Instructions
Freeze
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 500778 | 18-Hydroxycorticosterone, S | 500779 | 18-Hydroxycorticosterone, S | ng/dL | 1674-1 | |
| Order Code | 500778 | |||||
| Order Code Name | 18-Hydroxycorticosterone, S | |||||
| Order Loinc | ||||||
| Result Code | 500779 | |||||
| Result Code Name | 18-Hydroxycorticosterone, S | |||||
| UofM | ng/dL | |||||
| Result LOINC | 1674-1 |