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Test Directory

Test Directory Complement, Alternate Pathway, Functional

Complement, Alternate Pathway, Functional

Test Summary

Investigation of suspected alternative pathway complement deficiency, atypical hemolytic uremic syndrome, C3 glomerulonephritis, dense-deposit disease

Aliases

Mayo code AH50

Specimen Collection

Special Instructions

N/A

Preferred Specimen

5 mL serum collected in a red top tube

Minimum Volume

0.2 mL

Instructions

Immediately after specimen collection, place the tube on wet ice. Centrifuge at 4 degrees C and aliquot serum into a plastic vial. Freeze specimen within 30 minutes.

Patient Preparation

Patient should be fasting.

Storage

Plastic screw-cap vial

Transport Temperature

Frozen

Specimen Stability

Room Temperature: NA
Refrigerated: NA
Frozen: 14 Days

Limitations

N/A

Other Acceptable Specimens

N/A

Unacceptable Specimens

Serum from a serum separator tube

Order Code

CMPALT

EPIC (Premier) Code

LAB6319

Includes

N/A

CPT Code

86161

Billing Code

650003

CPT Statement

Methodology

Enzyme Linked Immunosorbent Immunoassay (ELISA)

FDA Status

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

Physician Attestation of Informed Consent

N/A

Testing Laboratory

Mayo Clinic Laboratories -- Rochester Superior Drive
3050 Superior Drive NW
Rochester MN, 55901

Department

Reference Testing

Reference Range

N/A

Setup Schedule / Expected Turnaround Time

Monday, Thursday; Reports available: 3 - 5 days