Test directory: Proinsulin

Ordering Code 5696
Test Name Proinsulin
Alias Insulin Precursor
Preferred Specimen Serum
Preferred Container SST (Gold)
Other Specimen/Container Serum in Plain (Red)
Optimum Volume 1.5 mL
Collection Instructions Patient must be fasting for 10-12 hours.
Handling Instructions Centrifuge and separate within 1 hour of collection.
Transport Requirements Oahu: Refrigerated
Airline: Frozen
Specimen Stability Ambient: 1 Day
Refrigerated: 3 Days
Frozen: 6 Months
Rejection Criteria Grossly hemolyzed, Lipemic, Received ambient at reference laboratory
Avail. Stat NO
Analytic Time Up to 2 Weeks
Methodology Immunoassay
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Proinsulin ALL See report.