A 51-year-old female presents with sudden onset of difficulty breathing. She is conscious and alert and able to speak in complete sentences. Her respirations are 22 breaths/min and regular. What should you do?

• A. Perform a secondary assessment and then begin treatment
• B. Insert a nasal airway in case her mental status decreases
• C. Assist her ventilations with a bag-mask device
• D. Administer oxygen via a nonrebreathing mask

Answer: (D)

The main idea is to optimize oxygenation right away in a patient with acute shortness of breath who is still conscious and Breathing adequately. Even with a normal mental status and regular respirations, hypoxemia can come on quickly during respiratory distress. Providing high-concentration oxygen helps maximize the amount of oxygen reaching the lungs and tissues while you continue to assess and monitor the patient.

A nonrebreathing mask delivers a high fraction of inspired oxygen when used at a proper flow rate (typically 12–15 L/min), making it the best initial step to improve oxygen saturation in this scenario. This approach supports the patient’s breathing without delaying care, and you can reassess and adjust based on SpO2, work of breathing, and clinical status.

Reasoning about the other options: delaying treatment to perform a secondary assessment can waste precious time when the priority is to stabilize oxygenation. Inserting a nasal airway is unnecessary for an alert patient who is breathing adequately and can protect their airway. Assisting ventilations with a bag-mask device is reserved for patients with inadequate or absent breathing; this patient is breathing on her own.