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Test Information

IGF-I, LC/MS (9163)

CPT Code:


Specimen Requirements:

0.5 mL of serum from a plain red-top tube (preferred) or serum separator tube (0.3 mL minimum). Allow blood to clot (10-15 minutes) at room temperature. Separate serum from cells and transfer to a plastic vial. Ship refrigerated. Plasma is unacceptable. ****SENDOUT TEST****


Room Temperature: 48 Hours Refrigerated: 5 Days Frozen: 28 Days

Minimum Collection Volume:

0.3 mL minimum


Liquid Chromatography Mass Spectrometry (LC/MS)

Rejection Reason:

Specimen received in glass tube; Shipping room temperature is unacceptable; Plasma is unacceptable. Gross hemolysis, gross lipemia, grossly icteric

Transport Temperature:


Container Type:

Plain red-top tube Serum Separator tube

(The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.)