What device can be used for suctioning in BLS?

The suction device is specifically designed for clearing the airway of fluids and debris, making it an essential tool in Basic Life Support (BLS) scenarios. When a person is unable to breathe effectively due to obstructions, such as blood, vomit, or secretions, the suction device allows rescuers to manage the airway effectively, ensuring that it remains clear and that the patient can receive adequate oxygenation.

Other devices mentioned serve different purposes: a stethoscope is used for auscultation and monitoring heart and lung sounds, a thermometer measures body temperature, and an oximeter assesses oxygen saturation levels in the blood. While all these tools have important roles in patient assessment and management, they do not replace the critical function of suctioning in lifesaving situations where airway obstruction poses an imminent threat.