Cilia activity can be impaired within 10 minutes if exposed to cold dry air.

The flange of the tracheostomy tube indicates the proper size of suction catheter to use.

The inner cannula of some tracheostomy tubes must be inserted to allow attachment of a resuscitation bag.

Mucous plugs are more likely to form when humidification is used.

Select the correct indications for a tracheostomy tube from the choices below.