A client with a traumatic brain injury (TBI) develops altered mental status and decreased oxygen saturation. What is the primary indication for initiating oxygen therapy in this client?

Correct Answer: D

Rationale: In a client with a traumatic brain injury, the primary indication for oxygen therapy is to ensure adequate oxygen supply to the brain and prevent further neurological damage.

Correct Answer: A

Rationale: Prolonged use of a nasal cannula can lead to dryness and discomfort in the nasal passages due to the direct flow of oxygen. The nurse should provide humidification to prevent or alleviate dryness and nasal irritation.

Correct Answer: B

Rationale: Condensation in the oxygen tubing can impede the flow of oxygen and reduce the effectiveness of oxygen therapy. The nurse should disconnect the tubing and drain the condensation before reconnecting and continuing oxygen therapy.

Correct Answer: C

Rationale: The client reporting nasal dryness and discomfort indicates inadequate humidification of the oxygen. The nurse should assess and adjust the oxygen flow rate or consider providing additional humidification to alleviate the client's discomfort and ensure effective oxygen therapy.

Correct Answer: C

Rationale: The client needs to be seen immediately. Hematemesis is a symptom of rupture of associated esophageal varices. The mortality rate with acute bleeding is 10% to 40% and is related to failure to control a bleeding episode.