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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Tracheostomy reduces dead space by ?
assistant
The correct answer is  Ans. is'a'i.e., By-passing upper airway (Ref: Morgan 4tu/e p. 553) Impoant effects of tracheostomy on respiratory physiologyTracheostomy decreases dead space as upper airways and nasal cavity are bypassed.Tracheostomy decreases ventilation/perfusion (V/Q) ratio.Tracheostomy reduces the airflow resistance.