ALT-70 Score for Lower Extremity Cellulitis

Aka: ALT-70 Score for Lower Extremity Cellulitis

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II. Indications

  1. Suspected Lower Extremity Cellulitis

III. Background

  1. Helps distinguish likelihood of lower extremity Cellulitis

IV. Criteria (Mnemonic: ALT-70)

  1. Score 3: Asymmetry
  2. Score 1: Leukocytosis (WBC >10,000)
  3. Score 1: Tachycardia (Heart Rate >=90)
  4. Score 2: Age >70 years

V. Interpretation

  1. Score <=2: Lower extremity Cellulitis unlikely (<17% likelihood of Cellulitis)
  2. Score 3-4: Indeterminate (consider specialty Consultation)
  3. Score 5-7: Cellulitis likely (>82% likelihood of Cellulitis)

VI. Resources

  1. ALT-70 Score for Cellulitis (MDCalc)
    1. https://www.mdcalc.com/calc/3998/alt-70-score-cellulitis
    2. May help distinguish lower extremity Cellulitis from other non-infectious cases

VII. References

  1. Raff (2017) J Am Acad Dermatol 76(4):618-25 +PMID: 28215446 [PubMed]

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