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Laboratory Updates

Patient Service Centers

Client Manual

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CAP Certificate

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Mayo Clinic Lab Test Catalog

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Specimen Collection

Special Collection Quick Reference Guide

Cytology Sample Collection and Transport

Microbiology Sample Collection and Transport

Histology Sample Collection and Transport

Venipuncture Collection

Mayo Clinic Laboratories

Test Code TSI Thyroid Stimulating Immunoglobulin

Cerner Order Code

TSI

Acceptable Collection Tube(s)

Preferred: Gold SST

Acceptable: Red Top

Specimen Draw Volume

Volume: 3.0 mL

Minimum Volume: 2.0 mL

Processing Instructions

Draw in a Red or Gold SST top tube. Allow tube to clot for 30 minutes, centrifuge, separate serum from cells and transfer to an aliquot tube. Store and transport refrigerated.

Stability

Stability: Refrigerated 7 days, Frozen 12 months

Rejection Criteria

Rejection criteria: Gross hemolysis, lipemic, and icteric specimens.

Performed Test Frequency

Weekdays

Turnaround Time

1 - 4 Days

CPT(s)

84445

Methodology

Chemiluminescence

Performing Location

Warde Medical Laboratory, Ann Arbor, MI.