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Test Code INSLN INSULIN, SERUM

Additional Codes

Software Test Code
Label Text                                       INSLN                                                                  
EPIC LAB527

Performing Laboratory

NorDx Laboratories

Useful For

Determination of insulin levels, along with proinsulin and C-peptide measurements, may be useful in the diagnosis of insulinoma.

 

The assay may also be used in the management of diabetes mellitus.

Method Name

Electrochemiluminescent Immunoassay (ECLIA)

Reference Values

2.6-24.9 uU/mL

 

Reference ranges are for adult and fasting specimens only.

Days and Times Test Performed

Monday through Sunday

Report Available

1 Day

Available Stat

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 1 mL (Serum Separator Tube (SST))

Minimum Volume

Serum: 0.25 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

1. Spin specimen, separate from clot and send frozen.

2. If multiple specimens are collected, send separate request form for each specimen. Clearly label each specimen with the collection time.

3. Sample should not be collected on patients receiving therapy with high biotin doses (i.e. >5 mg/day) until at least 8 hours after the last biotin administration.

Specimen Stability Information

Specimen Type: Serum

Frozen: 3 Months

Refrigerated: 2 Days

Must be spun/separated within: 2 Hours

Add On Capable

Yes

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code

CPT Description

CPT Disclaimer
83525 Insulin, Total, Quantitative  

Keywords

INSULIN

ISLET CELL TUMOR

Performing Laboratory Location

NorDx Laboratories

Clinical Significance

This test is intended for adult patients only.

 

Patients with a history of insulin usage may have insulin antibodies which cause an inaccurate assay result.

This procedure is specific for human insulin, therefore some synthetic insulins may not be measured accurately.

Erroneous findings may be obtained from samples taken from patients who have been treated with monoclonal mouse antibodies or have received them for diagnostic purposes.

Extremely high titers of antibodies to streptavidin can occur in isolated cases and cause interference.

No sample should be collected on patients receiving therapy with high biotin doses(i.e. biotin therapy for Multiple Sclerosis or oncology patients; skin, hair and nail supplements, or multivitamins containing > 5 mg/day) until at least 12 hours after the last biotin administration. If unsure, or if the clinical picture does not fit the results please contact the laboratory . We have methods to check for biotin interference as well as for any other interferences and for the accuracy of the results.

Biotin interference would falsely decrease the result of this assay.

LOINC Code Information

20448-7

Acceptable Alternative Container(s)

Plasma Separator Tube (PST)

Red Top Tube

Rejection Information

Hemolysis interferes with this assay.