91021      Angiotensin Converting Enzyme
Specimen:
  Collect: One 7.5 mL SST  
  Submit: 1 mL (Min:0.5 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube.  
  Special Handling: Allow specimen to clot completely at room temperature
Separate from cells ASAP 
  Stability: Ambient: 1 Week(s); Refrigerated: 1 Week(s); Frozen: 2 Month(s); Incubated: Unacceptable 
Methodology: Enzymatic 
Performed: Sun-Sat 
Reported: 2-3 Day(s) 
CPT Codes:
82164 - Angiotensin I-converting Enzyme
Interpretive Data:
General Reference Range : 9-67 IU/L