Test ID: CH50

Test Codes

  • Exsera Order Code: CH50
  • CPT Code: 86162
  • EPIC Code: LAB154

Specimen Requirements

Specimen Type: Serum

Collection Tube: Red or Tiger Top

Collection Instructions:  Allow collected blood to clot for 20-60 minutes before centrifuging. Then transfer to cryogenic tubes and aliquot as necessary before freezing and storing tubes at -80C within 2 hours of collection.

Volume Required: ~200 mcL  

Storage/Transport Temperature: Frozen @ -80C

Stability: 568 days while stored @ -80C from date of draw

Unacceptable Conditions: Severely Hemolyzed or thawed samples

Ordering Recommendation

Reference Interval

Normal Human: 58 - 138 U/mL

ULOQ/ALQ: 200 U/mL

LLOQ/BLQ: 10.72 U/mL

Test ClassificaTION

This test has been cleared by the US Food and Drug Administration and is used per manufacturer's instructions and per Exsera's SOPs. Performance characteristics were verified by Exsera in a manner consistent with CAP/CLIA requirements.

Methodology

Hemolytic (In-house)

Patient Testing Turnaround time

  • Standard: 7-14 Days
  • Expedited: 4-5 Days

Aliases

CH50, Classical Complement Pathway Function, Complement Total Function

Additional Notes

Diagnostic samples held for ~2 months before disposal of remaining sample