91147      Insulin - Like Growth Factor II
Specimen:
  Collect: One 10 mL Red Top  
  Submit: 1 mL (Min:0.5 mL) Serum. Submit Frozen. Submit in a Standard Transport Tube.  
  Special Handling: Fasting Specimen is Preferred
Separate aliquot required for each frozen test ordered
Separate from cells ASAP
Separate serum from cells within one hour of collection.
Up to four freeze/thaw cycles are acceptable. 
  Stability: Ambient: 2 Day(s); Refrigerated: 2 Day(s); Frozen: 12 Month(s); Incubated: Unacceptable 
Methodology: Radioimmunoassay after acid-alcohol extraction 
Performed: Varies 
Reported: 11-18 Day(s) 
CPT Codes:
83519