Urticaria Activity Score (UAS)
Stratifies severity of urticaria.
Note: The UAS is presented below. There are also 2 extensions of the UAS:
- UAS7: Calculated by summing once-daily UAS scores over a 7-day period, with total scores ranging from 0 to 42. Used to provide a more comprehensive assessment of disease burden compared to a single-point evaluation.
- UAS7TD: A variation of the UAS7 that involves twice-daily reporting (morning and evening) for 7 consecutive days, which may provide valuable information in patients with highly variable symptoms. While results are comparable to the UAS7, it is more cumbersome and, therefore, less commonly used.
Advice
- Use results, in conjunction with clinical judgment and specialist recommendations, to determine if current treatment is effective or if escalation (e.g., antihistamines, biologics) is warranted.
- Document scores over time to track long-term disease progression or remission.
- Consider additional evaluation (e.g., triggers, comorbidities) if symptoms persist despite treatment adjustments.