Emergency Medicine · Dermatology · Infectious Disease
ALT-70 Score for Cellulitis calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
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0
ALT-70 0–2 — cellulitis unlikely
Band: ALT-70 0–2 — cellulitis unlikely
Interpretation. ALT-70 0–2 — cellulitis unlikely
Suggested management. In the derivation cohort this band favored pseudocellulitis. Reassess the differential before committing to antibiotics for cellulitis alone.
ALT-70 Score for Cellulitis: 0 — ALT-70 0–2 — cellulitis unlikely. Interpretation: ALT-70 0–2 — cellulitis unlikely What to do: In the derivation cohort this band favored pseudocellulitis. Reassess the differential before committing to antibiotics for cellulitis alone. Inputs: Asymmetry (unilateral leg involvement): false; Leukocytosis (WBC ≥10,000/µL): false; Tachycardia (heart rate ≥90 bpm in the ED): false; Age ≥70 years: false Source: Raff AB et al. A predictive model for diagnosis of lower extremity cellulitis: a cross-sectional study. J Am Acad Dermatol. DOI: 10.1016/j.jaad.2016.12.044. PMID: 28215446. Scope: ALT-70 points — Asymmetry 3, Leukocytosis (WBC ≥10×10³/µL) 1, Tachycardia (HR ≥90) 1, age ≥70 years 2; bands 0–2 / 3–4 / 5–7. (2017)
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Clinical inputs
- Asymmetry (unilateral leg involvement)
- Leukocytosis (WBC ≥10,000/µL)
- Tachycardia (heart rate ≥90 bpm in the ED)
- Age ≥70 years
Primary source
Raff AB et al. A predictive model for diagnosis of lower extremity cellulitis: a cross-sectional study. J Am Acad Dermatol. DOI: 10.1016/j.jaad.2016.12.044. PMID: 28215446. Scope: ALT-70 points — Asymmetry 3, Leukocytosis (WBC ≥10×10³/µL) 1, Tachycardia (HR ≥90) 1, age ≥70 years 2; bands 0–2 / 3–4 / 5–7. (2017)
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