Brachial Plexus Injury Assessment
Assess brachial plexus injury severity using the British Medical Research Council (MRC) muscle grading scale for upper extremity function.
Input Parameters
Enter details for calculation.
Composite MRC Score
Expert Tip
MRC grade 0 = no contraction, 3 = movement against gravity, 5 = normal strength. A composite score below 15/25 typically warrants specialist referral.
Calculation Methodology & Details
Formula
Each movement is graded 0–5 per the MRC scale. The composite score provides a functional summary. Severity: ≥20 = Mild, 15–19 = Moderate, <15 = Severe.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How Brachial Plexus Injury is Assessed
Follow these steps to use this calculator:
Grade Each Movement
Test and grade 5 key upper extremity movements on the MRC scale (0–5).
Read Composite Score
The sum gives a functional severity classification.
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ℹ️ About this Calculation
This health calculator provides accurate anthropometric assessment and body composition metrics. Designed for clinical evaluation, fitness tracking, and physiological monitoring based on validated health guidelines.
Variable Glossary
Body Measurements
Height, weight, circumferences, or fold measurements recorded following standardized clinical protocols.
Anthropometric Indexes
Key physiological ratios and thresholds used to evaluate body fat distribution and medical classification.
How to Calculate Step-by-Step
Step 1
Enter your exact physical measurements into the designated fields.
Step 2
Select appropriate measurement units (Metric or Imperial) and demographic parameters if applicable.
Step 3
Review your computed index, category classification, and recommendations instantly.