Macroprolactin

CPT: 84146(x2)
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Test Includes

Prolactin; monomeric prolactin; percent macroprolactin


Expected Turnaround Time

5 - 10 days


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

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