2 - 7 days
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Enzyme-Linked Immunosorbent Assay (ELISA)
The AH50 assay is a useful screening tool for homozygous deficiencies of Alternative Pathway components including C3, factor I, factor B, properdin, factor H and factor D.
> or = 45% of normal
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.