Days Set Up
Monday - Friday
Analytic Time

3 - 4 weeks

Soft Order Code

Test Updated:


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Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Test Overview

Test Methodology
Test Usage

Serologies for TTP, aHUS, HUS. Test is a panel of: CH50eq, APFA, Hemolytic assay, FHAA, C3, C4, FB, Bb, sol. C5b-9, FI and FH levels

Reference Range

Interpretive report provided

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Specimen Requirements


Collect BOTH a red top tube AND an EDTA lav top tube. Spin and aliquot into a screw capped plastic tubes. Be sure to label aliquots as SERUM or PLASMA. (testing will be canceled if this is not done) If offsite, freeze samples and send to Specimen Processing.

Normal Volume
3 mL serum AND 3 mL EDTA plasma
Minimum Volume
2 mL serum AND 2 mL EDTA plasma

Billing Information

CPT Code
86161 x2, 83516, 86160 x6, 83520, 86162
Pro Fee Code

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Our High Standard

Quality that sets us apart

As the reference laboratory division of Michigan Medicine's Department of Pathology, MLabs shares the institution's commitment to applying established quality principles to clinical laboratory testing. Like other large organizations in complex, consequential fields, we rely on an established approach to monitor quality throughout the testing process.