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 #

Insulin, Total

Test Code
INSLN


Preferred Specimen
1 mL serum (0.5 mL minimum).


Instructions
Collect blood by venipuncture into plain tubes (without anticoagulant), or heparinized tubes, and separate the serum from the cells. Overnight fasting is required.


Transport Container
SST or No additive (red-top)


Reference Range
< 17 uIU/mL


Clinical Significance
Total insulin levels are useful in assessing the available insulin in serum, including antibody-bound insulin. Serum insulin levels are useful in the differential diagnosis of fasting hypoglycemia.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.