Respiratory obstruction is one of the commonest respiratory emergencies, and the cause must quickly be removed or alleviated before any further measures, such as artificial respiration, can be under taken.

• 呼吸道阻塞是最常见的呼吸道急症之一，在采取任何进一步措施(例如人工呼吸)以前，必须迅速除去病因或使其缓解。