Test Overview
Test Methodology

Chemiluminescent Immunoassay

Test Usage

Pituitary function test useful in the detection of prolactin secreting pituitary tumors with or without galactorrhea.

Reference Range *

3.0 - 23.0 ng/ml

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Specimen may be stored at room temperature up to 8 hours. [12/05]

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

4 hours

Soft Order Code
PRL
MiChart Code
Prolactin
Synonyms
  • PRL
  • PROLACTIN
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions

Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 48 hours or freeze for longer storage.

Alternate Specimen
Red Top Tube
Yellow Top Tube
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Additional Information

Prolactin Hook Effect Check (PRLHK) is available for ordering via Michart or may be requested by contacting the Chemistry Laboratory at 6-6702. A Prolactin order must accompany the PRLHK order or have been previously completed (24 hours).

Billing
CPT Code
84146
Fee Code
23315
LOINC
2842-3
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