Macroprolactin

CPT: 84146(x2)
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Test Details

Test Includes

Prolactin, serum (ICMA); monomeric prolactin (ICMA); percent macroprolactin

Methodology

Immunochemiluminometric assay (ICMA); PEG precipitation; An analyte-specific reagent (ASR) is used in this test.

Specimen Requirements

Specimen

Serum (preferred) or plasma, frozen

Volume

1 mL

Minimum Volume

0.2 mL

Container

Gel-barrier tube, red-top 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

1 day

Refrigerated

1 day

Frozen

200 days

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
500324 Macroprolactin 500325 Prolactin, Serum (ICMA) ng/mL 2842-3
500324 Macroprolactin 500326 Monomeric Prolactin (ICMA) ng/mL 42607-2
500324 Macroprolactin 500327 Percent Macroprolactin % 48389-1
500324 Macroprolactin 500328 Macroprolactin N/A

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