Correct Answer: D

Rationale: The cuff is inflated to prevent aspiration while eating or when cleaning the tracheostomy tube.

Correct Answer: 10

Rationale: Suctioning should be done for a maximum of 10 seconds at a time. Prolonged suctioning depletes oxygen supply.

Correct Answer: A,C,D

Rationale: Oxygen therapy may be initiated by a respiratory therapist, a nurse, an emergency medical technician (EMT), or any other licensed health care provider with an appropriate order for the oxygen. In some facilities, there is a respiratory care department, staffed by respiratory therapists who assume the responsibility of administering oxygen and delivering treatments that will improve a patient's ventilation and oxygenation. Adjustment of the oxygen flow rate is not delegated to UAP nor nutritional specialist.

Correct Answer: nasal

Rationale: A nasal cannula is a device consisting of small tubes inserted into the nares and is the most common way to administer oxygen.

Correct Answer: C

Rationale: Venturi mask delivers 4-10 L/min = 24%-55% O2, as per the table: Nasal cannula (1-6 L/min = 24%-44% O2), Simple face mask (5-8 L/min = 35%-55% O2), Venturi mask (4-10 L/min = 24%-55% O2), Partial rebreather mask (6-12 L/min = 60%-90% O2), Nonrebreather mask (6-15 L/min = 70%-100% O2).