The MAST Carba PAcE test is a colorimetric test used to detect carbapenemase-producing Gram-negative bacilli from cultured colonies. The performances of this test were compared with those of β-CARBA, Carba NP, and RAPIDEC Carba NP tests using a collection of 280 characterized isolates. Sensitivity and specificity of the MAST Carba PAcE test were 79.8% (95% confidence interval [CI], 73.3% to 85.1%) and 98.9% (95% CI, 92.9% to 99.9%), respectively. The MAST Carba PAcE sensitivity was the lowest, mainly due to interpretation difficulties (particularly for OXA-48-like enzymes).

中文翻译：

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MAST PAcE 比色法快速检测革兰氏阴性杆菌中碳青霉烯酶活性的评价

MAST Carba PAcE 测试是一种比色测试，用于检测来自培养菌落的产碳青霉烯酶革兰氏阴性杆菌。将该测试的性能与使用 280 个特征分离株的集合的 β-CARBA、Carba NP 和 RAPIDEC Carba NP 测试的性能进行了比较。MAST Carba PAcE 测试的灵敏度和特异性分别为 79.8%（95% 置信区间 [CI]，73.3% 至 85.1%）和 98.9%（95% CI，92.9% 至 99.9%）。MAST Carba PAcE 灵敏度最低，主要是由于解释困难（特别是对于 OXA-48 样酶）。