NMOSD Attack Severity Score

Score NMOSD relapse severity using visual acuity, EDSS change, nadir EDSS, lesion length on MRI, and time to peak deficit to guide IV methylprednisolone vs plasma exchange therapy.

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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

Score NMOSD relapse severity using visual acuity, EDSS change, nadir EDSS, lesion length on MRI, and time to peak deficit to guide IV methylprednisolone vs plasma exchange therapy

Each component has a specific meaning:

  • Visual acuity — The visual acuity recorded for the scenario being assessed.
  • EDSS change — The edss change recorded for the scenario being assessed.
  • Nadir EDSS — The nadir edss recorded for the scenario being assessed.
  • Lesion length on MRI — The lesion length on mri recorded for the scenario being assessed.
  • Time — The time recorded for the scenario being assessed.

Note: Interpret the nmosd attack score result against the thresholds and context described above.

How to Use

Enter the visual acuity, EDSS change, nadir EDSS, lesion length on MRI, time for the scenario you are assessing. Score NMOSD relapse severity using visual acuity, EDSS change, nadir EDSS, lesion length on MRI, and time to peak deficit to guide IV methylprednisolone vs plasma exchange therapy. Use the nmosd attack score result to inform your calculation.

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Frequently Asked Questions