RYR1 & CACNA1S Pharmacogenomic Panel
Why Pre-operative Genotyping Saves Lives

Event Incidence in the OR
Clinical MH crises occur in roughly 1 in 10,000 pediatric and 1 in 50,000 adult anesthetics.

Genetic Prevalence
Pathogenic variants are found in ≈ 1 in 1,556 people—far more common than the reaction itself.

Inheritance
Autosomal-dominant. Every first-degree relative of a carrier has a 50% risk.
Genes We Analyze & Disease Mechanism
| Gene | Normal Function | Pathogenic Effect |
|---|---|---|
| RYR1 | Releases Ca²⁺ from sarcoplasmic reticulum | Creates a “leaky” channel → runaway Ca²⁺ release |
| CACNA1S | Voltage-sensor that activates RYR1 | Abnormal gating amplifies RYR1 activation |
Who Should Be Tested?
Your Journey with Genolife Services
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Pre-test CounsellingUnderstand benefits, limits, and inheritance. |
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Sample Collection3 mL EDTA blood. |
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Expert InterpretationReview by Clinical Geneticist, Counselor, Pharmacologist, and Anesthesiologist. |
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Post testClose the loop; each first-degree relative has a 50% risk. |
Ready to plan for a safer health future?
Contact us for a consultation with our Genetic Counselor/Pharmacogenomics Specialist about the Malignant Hyperthermia (MH) Screening or other genetic tests.
References
- Information and guidelines derived from NCBI GeneReviews and other clinical sources.









