All of the following statements are true of tracheostomy, except:
A. It reduces dead space
B. It is as commonly practiced today as in the past
C. It is necessary when prolonged artificial ventilation is needed
D. It makes tracheobronchial toileting easy
Ans.
B. It is as commonly practiced today as in the past
Indication
of tracheostomy
1. Prolonged mechanical ventilation
most common.
2. Chronic aspiration
3. Acute airway obstruction due to
- Facial or laryngeal edema
- Deep neck infection
Tracheostomy opening closes
spontaneously if tube is decannulated
Advantage
of tracheostomy
1. It reduces anatomical dead space by
50%
2. It reduces work of breathing
3. Alveolar ventilation increased
Disadvantage
of tracheostomy
1. Loss of heat and moisture exchange
2. Foreign body in trachea produces
more mucus, which is more viscid.
