常见的酸碱失衡为单纯型（呼吸性酸中毒、呼吸性碱中毒、代谢性酸中毒、代谢性碱中毒）；有时亦出现混合型。
O O O B-dis I-dis I-dis I-dis O O O O O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis O B-dis I-dis I-dis I-dis I-dis I-dis O O O O O O O O O O O