Test Includes
Prolactin; monomeric prolactin; percent macroprolactin
Expected Turnaround Time
5 - 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.
Related Documents
Specimen Requirements
Specimen
Serum (preferred) or plasma, frozen
Volume
2 mL
Minimum Volume
1 mL (Note: This volume does not allow for repeat testing.)
Container
Gel-barrier tube, red-top tube, serum transfer tube, green-top (heparin) tube, or lavender-top (EDTA) tube
Collection
Do not draw sample until patient has been awake for at least two hours. Separate serum or plasma from cells within 45 minutes of collection. Transfer specimen to 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.
Storage Instructions
Freeze.
Stability Requirements
Temperature | Period |
|---|---|
Room temperature | 14 days |
Refrigerated | 14 days |
Frozen | 6 months |
Test Details
Methodology
Electrochemiluminescence immunoassay (ECLIA)
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 500324 | Macroprolactin | 38926-2 | 500325 | Prolactin | ng/mL | 2842-3 |
| 500324 | Macroprolactin | 38926-2 | 500326 | Monomeric Prolactin | ng/mL | 42607-2 |
| 500324 | Macroprolactin | 38926-2 | 500327 | Percent Macroprolactin | % | 51441-4 |