多数局部麻醉手术患者因痛阈的不同及手术部位深浅,表现出不同的症状。绝大多数患者通过局部麻醉能很好地配合手术直至结束,极少数患者因对疼痛较敏感出现呼吸急促,从而引发呼吸性碱中毒。1症状患者出现呼吸性碱中毒时可有眩晕、呼吸急促、手足和咽喉麻木和针刺感、肌肉震颤、 Most local anesthesia patients due to different pain threshold and surgical depth, showing different symptoms. The vast majority of patients with local anesthesia can be well with the operation until the end, a very small number of patients because of the more sensitive to the emergence of shortness of breath, which triggered respiratory alkalosis. 1 Symptoms Patients with respiratory alkalosis may have dizziness, shortness of breath, hand, foot and throat numbness and acupuncture, muscle tremor,