2227      Insulin, Fasting
Specimen:
  Collect: One 7.5 mL SST

Also Acceptable
One 4 mL Green Top (Na Heparin) 
  Submit: 1 mL (Min:0.5 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable
1 mL (Min:0.5 mL) Plasma. Submit Refrigerated. Submit in a Standard Transport Tube. 
  Special Handling: Allow specimen to clot completely at room temperature
Separate from cells ASAP
Freeze specimen if delayed more than 48 hours before testing. 
  Rejection Criteria: Grossly Hemolyzed Samples 
  Stability: Ambient: 8 Hour(s); Refrigerated: 2 Day(s); Frozen: 1 Month(s); Incubated: Unacceptable 
Methodology: Chemiluminescence 
Performed: Mon-Fri 
Reported: 1-3 Day(s) 
CPT Codes:
83525 - Insulin, Total
Interpretive Data:
General Reference Range : 5-27 uIU/ml