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Human Placental Lactogen

Test Codes

EPIC: LAB6060, Beaker: XHPL, Mayo: FHPL

Department

Send Outs

Specimen Collection Criteria

Collect: One plain Red-top tube.

Do NOT use Serum Separator (SST) tubes.

Critical FROZEN.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and freeze (-20°C/-4°F or below) immediately.

Preparation for Courier Transport

Transport: 1.0 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.5 mL)

Rejection Criteria

Specimens not collected and processed as indicated.

In-Lab Processing

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and freeze (-20°C/-4°F or below) immediately.

Transport: 1.0 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.5 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): unacceptable
Refrigerated (2-8°C or 36-46°F): unacceptable
Frozen (-20°C/-4°F or below): 3 months

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mayo Clinic Laboratories in Rochester, MN. Forwarded to Cambridge Biomedical Research Group, Boston, MA.

Performed

Thursday. 
Results available in 4-12 days.

Reference Range

By report.

Test Methodology

Enzyme-Linked Immunosorbent Assay.

Interpretation

By report.

Clinical Utility

The human placental lactogen assay is used as an index of fetal well-being. Decreased hPL levels are seen with intrauterine growth retardation. This assay is useful in the evaluation of antepartum placental function. Maternal hPL serum levels correlate with placental weight.

CPT Codes

83632

Contacts

Last Updated

9/18/2023