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Test Code PROINS Proinsulin, Intact  

Important Note

Aids in the detection of insulinoma. Do not use to diagnose diabetes mellitus. Fasting intact proinsulin values above the reference interval indicate a possible insulin secreting pancreatic tumor (insulinoma) in patients with hypoglycemia. Fasting intact proinsulin values range from 3 to 50 pmol/L in patients with untreated type 2 diabetes.
 

Additional Codes

70112

Specimen Type

Blood

Preferred Collection Container

SST

Collection Instructions

Separate from cells ASAP or within 2 hours of collection

Collection Volume

2.0 mL

Minimum Collection Volume

0.5 mL

Testing Volume

0.2 mL

Rejection Criteria

Grossly hemolyzed specimens

Specimen Storage and Stability

Ambient: Unacceptable; Refrigerated: 24 hours; Frozen: 2 months

Day(s) and Time(s) Performed

Tuesday, Thursday

Test Alias

70112; PINS
 

CPT Coding

84206

EPIC Code

LAB1086

Methodology

Chemiluminescent Immunoassay
 

Acceptable Collection Container

SST, R-NoGel, LAV (EDTA), PINK (EDTA)
 

Transport

Refrigerated if less than 24 hours.  Frozen.

Turn Around Time

2-7 days

LOINC

10451-3