What is the primary assessment used to check for breathing?

The primary assessment for checking breathing involves looking, listening, and feeling for breath sounds. This method is critical for evaluating the patient's respiratory status effectively. By observing the chest for movement, listening for any sounds of airflow or restriction, and feeling for exhalation, you can ascertain whether the patient is breathing adequately and whether the airway is obstructed. This comprehensive approach provides immediate feedback on the patient's breathing capabilities and allows for quick intervention if necessary.

The other options do not directly assess breathing. Checking a pulse evaluates circulation, measuring blood pressure assesses the cardiovascular system's status, and assessing skin color helps gauge perfusion and oxygenation but does not specifically address the mechanics of breathing. By focusing on the correct assessment of breath sounds and respiratory effort, you can ensure a thorough evaluation of a patient's airway and breathing, which is fundamental in emergency medical care.