Test Overview
Test Methodology
Two-site enzyme-linked immunosorbent assay (ELISA)
Test Usage
For Duchenne muscular dystrophy (DMD) patients receiving gene therapy (Zolgensma) treatment, who are being monitored by the Pediatric Neurology group.
Older patients, 4 and 5 years old, will be tested weekly for the first month due have a higher risk for myocarditis or myositis following DMD therapy.
Reference Range *
<0.08 ng/mL
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Daily, 24 hours
Analytic Time
1 hour
Soft Order Code
CTNI
MiChart Code
Cardiac Troponin I (cTnI)
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions
Collect specimen in a green top tube. Centrifuge, aliquot plasma into a plastic vial and refrigerate.
Contraindications
Patient is not a Duchenne muscular dystrophy patient receiving gene therapy treatment.
Normal Volume
2.0 mL whole blood (1 mL plasma)
Minimum Volume
1.0 mL whole blood (0.5 mL plasma)
Rejection Criteria
Samples stored at room temperature for more than 4 hours are unacceptable. Samples that are clotted or grossly hemolyzed.
Billing
CPT Code
84484
LOINC
42757-5