Meconium aspiration syndrome ; suctioning ; intrapartum .

胎粪吸入综合征；抽痰法抽吸术；产时。

So that , consistent use of the best possible suctioning technique ensures safer suctioning and maintains airway patent .

所以，掌握正确的吸痰方法是安全吸痰、持呼吸道通畅的关键。