C Peptide, Ultrasensitive, ES

Test ID: 


CPT code:


Clinical Use:

C-peptide measurement

Specimen Type:

Serum (preferred) or plasma

Requested Volume: 

0.3 mL (Note: This volume does not allow for repeat testing.)

Minimum Volume: 

1 mL

Container Type: 

Gel-barrier tube, red-top tube, or lavender-top (EDTA) tube


Serum or plasma must be separated from cells within 45 minutes of venipuncture. Submit specimen in a plastic transport tube. Freeze plastic transport tube (preferred) or refrigerate. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Storage Instructions:

Freeze (preferred) or refrigerate. Stable at room temperature for one day or refrigerated for seven days. Stable for 348 days frozen. Freeze/thaw cycles: x6.



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MCI Diagnostic

Providing top patient care with fast results. 

7018 South Utica Avenue

Tulsa, Oklahoma 74136

Hours of Operation

Mon – Sat: 7AM-11PM

Sun: 7AM-3PM

Government Contract

Mon – Sat: 7AM-11PM

Sun: 7AM-3PM


Mon – Sat: 7AM-11PM

Sun: 7AM-3PM

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