Clopidogrel CYP2C19 Loss-of-Function Risk

Estimate clopidogrel antiplatelet failure risk from CYP2C19 loss-of-function alleles. *2/*2 homozygous gives 3x higher MACE risk.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Estimate clopidogrel antiplatelet failure risk from CYP2C19 loss-of-function alleles. *2/*2 homozygous gives 3x higher MACE risk

Each component has a specific meaning:

  • CYP2C19 loss-of-function alleles — The cyp2c19 loss-of-function alleles recorded for the scenario being assessed.

Note: Interpret the clopidogrel cyp2c19 result against the thresholds and context described above.

How to Use

Enter the CYP2C19 loss-of-function alleles for the scenario you are assessing. Estimate clopidogrel antiplatelet failure risk from CYP2C19 loss-of-function alleles. *2/*2 homozygous gives 3x higher MACE risk. Use the clopidogrel cyp2c19 result to inform your calculation.

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