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24973 Insulin Post Dose

Insulin Post Dose
Test Code: INSLNPD
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​Serum​Serum Separator Tube (SST)​Red Top Tube (RTT)​0.5 mL​0.3 mL​0.25 mL​
Collection Processing Instructions

Samples collected in a RTT must be removed from clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.

When ordering this test, you will be asked to enter a comment relaying the dosing regimen and timing information (Example: 60 minutes post glucola).​

Specimen Stability Information
Specimen Type Temperature Time
Serum​ Ambient​ 8 hours​
Refrigerated​ 24 hours​
Frozen​ >24 hours​
Rejection Criteria
Grossly hemolyzed
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 1 day​
 Two-site Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur ​
Test Information
Patients on long-term insulin therapy may have anti-insulin antibodies which will falsely lower insulin results. Insulin assay measures exogenous as well as endogenous insulin; measurement of C-peptide may be helpful in differentiating the insulin source and in assessing the cause of hypoglycemic states.
Note: after 48 hours of refrigeration, insulin loses about 10% of its activity.
Reference Range Information
Performing Location Reference Range
Marshfield​ Fasting: 2.6 - 37.6 uU/mL​
Interpretation
All results will be reported with the standard fasting insulin reference range. It is not related to any specific dosing regimen.
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83525  ​ ​ ​ ​ ​
Ordering Applications
Ordering Application Description
​Centricity ​Insulin Post Dose
​Cerner ​Insulin, Post Dose
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​Serum​Serum Separator Tube (SST)​Red Top Tube (RTT)​0.5 mL​0.3 mL​0.25 mL​
Collection Processing

Samples collected in a RTT must be removed from clot within one hour for storage or transport. Samples collected in gel barrier tubes must be removed from the primary tube prior to transporting to Marshfield. Do not send the primary collection tube.

When ordering this test, you will be asked to enter a comment relaying the dosing regimen and timing information (Example: 60 minutes post glucola).​

Specimen Stability Information
Specimen Type Temperature Time
Serum​ Ambient​ 8 hours​
Refrigerated​ 24 hours​
Frozen​ >24 hours​
Rejection Criteria
Grossly hemolyzed
Reference Range Information
Performing Location Reference Range
Marshfield​ Fasting: 2.6 - 37.6 uU/mL​
Interpretation
All results will be reported with the standard fasting insulin reference range. It is not related to any specific dosing regimen.
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Marshfield​ Monday through Friday​ 1 day​
 Two-site Sandwich Immunoassay using Direct Chemiluminometric Technology/Siemens Centaur ​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
83525  ​ ​ ​ ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.