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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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HAMILTON score calculator

Introduction

HAMILTON Score Calculator

HAMILTON Score Calculator

Calculation of the HAMILTON Score

Check all boxes that apply to your patient:

HAMILTON Score Calculator
Variable Score
Active malignancy in the previous 6 months 2
Lower limb plaster immobilization 2
The emergency department physician has an elevated clinical suspicion of DVT in the absence of other possible alternative diagnoses 2
Bed rest for more than 3 days
OR
Recent surgery in the previous 4 weeks		 1
Discrepancy of ≥ 3 cm in calf circumference 1
Erythema 1
Male 1
HAMILTON Score:
Interpretation:

Interpretation of the HAMILTON Score

The interpretation of the score is as follows:

  • Score ≤2: Unlikely probability of DVT
  • Score ≥3: Likely probability of DVT
  • The combination of a HAMILTON score ≤2 and a negative D-dimer excludes DVT with a negative predictive value of 99%.
References

References

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]