Complement Activity, Alternative Pathway AH50

Specimen:

Test Code

AH50

Specimen Name

Complement Activity, Alternative Pathway AH50

Collect

1-Plain Red Top

Submit

1 mL (Min: 0.5 mL) Serum

Special Handling

Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP and centrifuge and aliquot serum into standard transport tube. Freeze specimen immediately at -70 degrees C or lower freezer.

Rejection Criteria

Specimen types other than serum collected from RED TOP tubes. SST or serum gel tubes are not acceptable. Refrigerated or room temperature specimens. Specimens left to clot at refrigerated temperature. Specimens exposed to repeated freeze/thaw cycles. Grossly hemolyzed or grossly lipemic specimens or icteric specimens.

Stability

Preferred/Transport CRITICAL FROZEN 30 days; Ambient Unacceptable; Refrigerated Unacceptable

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay (ELISA)

Performed

Sunday/Wednesday

Reported

7-14 days

CPT Codes

  • 86161

Components

Additional Information

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT