Mastocytosis Symptom Severity and Treatment Response Calculator

Calculates mastocytosis symptom severity using the Mastocytosis Activity Score (MAS) and baseline tryptase for skin, mediator release, bone marrow burden, and anaphylaxis risk to guide treatment escalation.

Weight
Height
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

Calculates mastocytosis symptom severity using the Mastocytosis Activity Score (MAS) and baseline tryptase for skin, mediator release, bone marrow burden, and anaphylaxis risk to guide treatment escalation

Each component has a specific meaning:

  • Baseline tryptase — The baseline tryptase recorded for the scenario being assessed.

Note: Interpret the mastocytosis severity result against the thresholds and context described above.

How to Use

Enter the baseline tryptase for the scenario you are assessing. Calculates mastocytosis symptom severity using the Mastocytosis Activity Score (MAS) and baseline tryptase for skin, mediator release, bone marrow burden, and anaphylaxis risk to guide treatment escalation. Use the mastocytosis severity result to inform your calculation.

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