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HelpTEST ID PINS Proinsulin, Plasma
Reporting Name
Proinsulin, PSpecimen Type
Plasma EDTASpecimen Required
Patient Preparation:
Fasting: 8 hours, required; Infants younger than 2 years should fast a maximum of 6 hours
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Ice-cooled, lavender top (EDTA)
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. After collection, place the whole blood on ice for at least 10 minutes, then centrifuge at refrigerated temperature.
2. Aliquot plasma into a plastic vial and send frozen.
Specimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Plasma EDTA | Frozen | 30 days |
Method Name
Electrochemiluminescent Assay
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
Reference Values
3.6-22 pmol/L
Day(s) Performed
Tuesday, Friday
Report Available
2 to 5 daysSpecimen Retention Time
2 weeksPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84206
Useful For
As part of the diagnostic workup of suspected insulinoma
As part of the diagnostic workup of patients with suspected prohormone convertase 1/3 deficiency
As part of the diagnostic workup of patients with suspected proinsulin variations