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Leptin, Quantitative

Test Codes

EPIC: LAB7605, Beaker: XLEPTIN, ARUP: 0070263

Department

Send Outs

Instructions

Patient should fast overnight prior to collection.

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube.

Physician Office/Draw Specimen Preparation

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

Preparation for Courier Transport

Transport: 0.5 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.2 mL)

Rejection Criteria

• Non-fasting specimens.
• Specimens not collected and processed as indicated.
• Hemolyzed or lipemic specimens.

In-Lab Processing

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

Transport: 0.5 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.2 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 24 hours
Refrigerated (2-8°C or 36-46°F): 48 hours
Frozen (-20°C/-4°F or below): 60 days

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 ARUP Laboratory in Salt Lake City, UT.

Performed

Monday, Thursday.
Results available in 2-6 days.

Reference Range

By Report.

Test Methodology

Quantitative Chemiluminescent Immunoassay.

CPT Codes

83520

Contacts

Last Updated

11/2/2023