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Beaumont Laboratory

Trypanosoma cruzi, IgM

Chagas Disease, ARUP #51075, EPIC: LAB6345, SOFT: XTCRM

Instructions

Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days of the acute specimens. Please mark specimen plainly as "acute" or "convalescent."

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube.

Physician Office/Drawsite Specimen Preparation

Let specimen clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 1.0 mL serum, refrigerated (2-8°C or 36-46°F). (Min: 0.05 mL)

Rejection Criteria

  • Hemolyzed specimens.
  • Iceteric specimens.
  • Lipemic specimens.
  • Turbid specimens.
  • Specimens not collected and processed as indicated.

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 48 hours
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 1 year

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Sendout Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Wednesday.
Results available in 2-9 days.

Reference Range

Less than 1:16: Negative - No significant level of Trypanosoma cruzi IgM antibody detected.
1:16 or Greater: Positive - IgM antibodies to Trypanosoma cruzi detected, which may suggest current or recent infection. 

Test Methodology

Semi-Quantitative Indirect Fluorescent Assay.

CPT Code

86753.

Test Codes

ARUP #51075, EPIC: LAB6345, SOFT: XTCRM

Last Updated

12/19/2016

Microtainer® and Vacutainer® are registered trademarks of Becton, Dickinson and Company.
UroVysion® is a registered trademark of Abbott Laboratories. ThinPrep® is a registered trademark of Hologic, Incorporated.

This directory currently reflects information only for specimens collected and/or processed at the Farmington Hills, Grosse Pointe, Royal Oak, and Troy campuses.