Test Details
Methodology
Liquid chromatography tandem mass spectrometry (LC/MS/MS); equilibrium dialysis
Result Turnaround Time
9 - 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, frozen
Volume
3 mL
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Gel-barrier tube or red-top tube
Collection Instructions
Serum must be separated from cells within 45 minutes of venipuncture. 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 | 6 days |
Frozen | 32 months |
Storage Instructions
Freeze
Causes for Rejection
Plasma sample
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 500649 | Estradiol, Free Serum | 2240-0 | 502608 | Estradiol, Serum, MS | pg/mL | 35384-7 |
| 500649 | Estradiol, Free Serum | 2240-0 | 500431 | Free Estradiol, Percent | % | 14960-9 |
| 500649 | Estradiol, Free Serum | 2240-0 | 500432 | Free Estradiol, Serum | pg/mL | 2240-0 |
| Order Code | 500649 | |||||
| Order Code Name | Estradiol, Free Serum | |||||
| Order Loinc | 2240-0 | |||||
| Result Code | 502608 | |||||
| Result Code Name | Estradiol, Serum, MS | |||||
| UofM | pg/mL | |||||
| Result LOINC | 35384-7 | |||||
| Order Code | 500649 | |||||
| Order Code Name | Estradiol, Free Serum | |||||
| Order Loinc | 2240-0 | |||||
| Result Code | 500431 | |||||
| Result Code Name | Free Estradiol, Percent | |||||
| UofM | % | |||||
| Result LOINC | 14960-9 | |||||
| Order Code | 500649 | |||||
| Order Code Name | Estradiol, Free Serum | |||||
| Order Loinc | 2240-0 | |||||
| Result Code | 500432 | |||||
| Result Code Name | Free Estradiol, Serum | |||||
| UofM | pg/mL | |||||
| Result LOINC | 2240-0 |