Which aspects are assessed when evaluating breathing?

• A. Oxygen saturation
• B. Respiratory rate, depth, and effort
• C. Blood pressure and heart rate
• D. Temperature

Answer: (B)

Evaluating breathing focuses on how ventilation is happening—the pattern and the work involved. The key aspects are respiratory rate, which shows how fast someone is breathing, the depth of each breath, indicating shallow versus deep breaths, and the effort required to breathe, such as use of extra muscles or signs of labored breathing. Together, these elements describe the mechanics of ventilation and help identify distress or fatigue.

Oxygen saturation measures how well blood is being oxygenated, which is about oxygenation rather than the act of breathing itself, though it complements the assessment. Blood pressure and heart rate are cardiovascular factors that can change in respiratory problems but don’t describe the breathing pattern. Temperature is a general vital sign not specific to ventilation. So the best answer is the one that directly characterizes the rhythm, volume, and effort of breathing.