.

Vanderbilt Pathology Laboratory Services

Test Directory



INSULIN (IRI)

Department: Esoteric Chemistry
Test Synonym(s): IRI
CPT Codes: 82397
Methodology: Chemiluminescent Immunoassay
Reference Range: 0-150 yrs: 0-16 mcU/mL
Tube Type: Red top tube
Specimen: Serum
Pediatric Requirements: 1 red microtainer
Volume: 5 mL
Minimum Volume: 0.5 mL
Temperature: Must be spun in refrigerated centrifuge and separated.
Stability: Frozen: 7 days
Reasons for Rejection: QNS, EDTA plasma
Days Performed: Daily
Times Performed: Continuous
TAT: 1 day
Significance: This test should be measured to establish the pathogenesis of fasting hypoglycemia. The NACB guidelines suggest that there is no role for routine insulin in most diabetic patients. Diabetes Care 34:e61-e99,2011. Patients receiving insulin therapy may develop anti-insulin antibodies which could interfere with the assay. This assay shows nearly equimolar cross reactivity (75-150%) with recombinant human insulin (Actrapid and Humulin) and nsulin analogs (detemir, aspart, glargine and lispro).
Special Instructions: Fasting specimen. Non fasting specimens are acceptable for special studies.

Search Tests

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Enter Keyword:

Search Help


Search Options for the Test Directory:

1. Enter the test name in the Keyword search field.
Hint: You can also enter any part of the test name to expand the search.
(Example: you can type "west" or "sed" or "rate" to find Westergren Sedimentation Rate)

2. Enter the Vanderbilt Test Code, if known.

3. Choose one of the letter boxes to display a list of all test names and keywords starting with that letter.

If you are unable to find a test in our directory, please contact VPLS at
1-800-551-5227 or e-mail emily.k.thompson@vanderbilt.edu.