Skip to main content



  • Chemistry
  • Health Assessment and Safety

General Information

Name Information
Application:Insurance Risk Assessment, Wellness
Turnaround Time:Daily
Analytical - Method:Colorimetric test by reaction with nitroblue tetrazolium
Reportable - Test Results Type:Quantitative
Units - Conventional:μmol/L

Specimen Information

Name Information
Minimum Volume:300 µL
Preferred Volume:500 µL
Rejection Criteria:

Improper labeling, improper sample handling, and wrong sample type.

Collection Instructions:

See “Blood Collection”

Collection Patient Preparation:NA
Container:Only the specimens listed below were tested and found acceptable. Serum (free from hemolysis): Collect serum using standard sampling tubes. Plasma (free from hemolysis): Li‑heparin and K2‑EDTA plasma