The effect of pursedlip inspiration and inspiratory sniffing on mean arterial pressure depended upon accompanying hyperventilation.
用嘴唇吸气和用鼻子吸气对于平均动脉压的作用主要依靠呼吸的深度。
2
Teaching slow pursed-lip breathing techniques can help the patient feel some sense of control over breathing. Fear of suffocation or death is not uncommon.