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Insulin Like Growth Factor Binding Protein 1

IGF Binding Protein 1, IGFBP1, IFBP-1

Test Codes

EPIC: LAB6288, Beaker: XIGB1, Mayo: FGBP1

Department

Send Outs

Specimen Collection Criteria

Collect (preferred specimen): One plain Red-top tube.

Critical FROZEN.

Physician Office/Draw Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within 1 hour. Transfer serum to a plastic transport tube and freeze (-20°C/-4°F or below) immediately.

Preparation for Courier Transport

Transport: 0.5 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.1 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 1 hour. Transfer serum to a plastic transport tube and freeze (-20°C/-4°F or below) immediately.

Transport: 0.5 mL serum, frozen (-20°C/-4°F or below). (Minimum: 0.1 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): 200 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 Mayo Clinic Laboratories in Rochester, MN. Forwarded to LabCorp Esoterix Endocrinology, Calabassas Hills, CA.

Performed

Monday, Thursday.
Results available in 7-14 days.

Reference Range

By Report.

Test Methodology

Immunochemiluminometric Assay (ICMA).

CPT Codes

83520

Contacts

Last Updated

10/5/2023