Test Details

Mnemonic

MAPRL

Ordering Code

3802700

CPT-4 Code(s)

84146 x 2

Specimen Information

Patient Preparation

Do not take vitamins or supplements containing biotin (vitamin B7) for 12 hours before draw.

Collect

Red top

Specimen Preparation

Centrifuge, separate and send 1.0 mL serum in a screw capped plastic vial.

Alternate Specimen

Serum separator tube (SST)

Minimum Volume

0.6 mL

Transport Temperature

Refrigerated

Rejection Criteria

Gross hemolysis

Stability

Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 90 days

Methodology

Polyethylene Glycol (PEG) Precipitation followed by Electrochemiluminescent Immunoassay
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Reference Range

Unprecipitated Prolactin/Total Prolactin Ratio: >50%

Total Prolactin:
Males:
≤18 years: Not established
>18 years: 4.0-15.2 ng/mL

Females:
≥18 years: Not established
>18 years: 4.8-23.3 ng/mL

Percent of the precipitated (complexed) prolactin
fracton of the total prolactin
<50% (considered negative for macroprolactin)
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Performing Laboratory

MAYO
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New York DOH Approval Status

Yes
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