ALT-70 Cellulitis Score
ALT-70 score (Raff 2017): predicts the likelihood of cellulitis versus pseudocellulitis (0-7) from asymmetry, leukocytosis, tachycardia, and age >= 70.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Asymmetry
- Yes
- White blood cell count
- 11
- Heart rate
- 92
Result: ALT-70 5: cellulitis likely (>= 82% likelihood of cellulitis).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Bands
- <= 2 cellulitis unlikely (>= 83% pseudocellulitis -- reassess), 3-4 indeterminate, >= 5 cellulitis likely (>= 82%).
What you enter
- Asymmetry (unilateral leg involvement)
- White blood cell count (x10^3/uL)
- Heart rate (beats/min)
- Age (years)
How this is calculated
- Points
- Asymmetry 3, Leukocytosis (WBC >= 10) 1, Tachycardia (HR >= 90) 1, age >= 70 = 2 (total 0-7).
Raff AB, Weng QY, Cohen JM, et al. A predictive model for diagnosis of lower extremity cellulitis: a risk score based on clinical and patient characteristics. J Am Acad Dermatol. 2017;76(4):618-625. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.