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急性阑尾炎Alvarado评分

体征
右下腹压痛？	是 +2
反跳痛？	是 +1
发热 (37.3 °C 或 99.1 °F)？	是 +1
症状
疼痛转移至右下腹部？	是 +1
厌食？	是 +1
恶心或呕吐？	是 +1
实验数值
白细胞增多 > 10,000？	是 +2
白细胞左移？	是 +1
患者没有这些迹象
评分	分

As the Alvarado Score is numerical, it has been evaluated for ruling in and ruling out appendicitis. Studies ruling out appendicitis (using Alvarado < 3-4) have a sensitivity of 96%; studies ruling in appendicitis (using Alvarado > 6-7) have a sensitivity of 58-88%, depending on the study and score cutoffs used.The 2007 McKay study (see below) recommends CT scan for Alvarado 4-6, surgical consultation for Alvarado ≥ 7, and for Alvarado ≤ 3, no CT for diagnosing appendicitis, as appendicitis is unlikely.