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This is a two-site sandwich immunoassay which uses direct chemiluminometric technology.

Test Utility

Prolactin is a hormone secreted by the anterior pituitary gland. Elevated prolactin levels may be an indication of a pituitary tumor known as a prolactinoma. Increased prolactin levels may cause menstrual irregularities and/or infertility in women and low sex drive and/or erectile dysfunction in men.

Specimen Collection and Preparation

Serum or plasma sample in the following tubes:

  • Serum separator tube (gold or tiger top)

  • EDTA (lavender top) OR Lithium Heparin (green top)

Specimen Storage and Stability

Store serum or plasma at the following temperatures:

  • Room Temperature for up to 8 hours

  • Refrigerated: 2°C to 8°C for up to 48 hours.

  • Frozen: -20°C or lower- Samples should be thawed only once.

Specimen Rejection

  • Insufficient sample volume

  • Sample not stored at proper temperature

  • Frozen whole blood

  • Severely hemolyzed samples

  • Severely lipemic specimens

  • Specimen labeled incorrectly or not labeled

Reference Pages


Monday – Saturday

Result available within 24 hours of receipt in laboratory

NOTE: Specimens are refrigerated (2-8°) for 7 days before disposal


Vibra Health Laboratory

1307- A, Allen Dr

Troy, MI 48083

(248) 846-0663

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