The problem is particularly serious in patients with chronic pulmonary disease, in whom pre-existing respiratory acidosis may be accentuated by another illness or injury.

• 慢性肺部病变患者的呼吸性酸中毒情况由为严重，因为在这些患者中，先前存在的呼吸性酸中毒可因其它疾病或损伤而加重。