Which tool is commonly used during Basic Life Support (BLS)?

The bag-valve-mask (BVM) is a critical tool used during Basic Life Support (BLS) and is essential for providing positive pressure ventilation to patients who are not breathing adequately. The BVM allows a rescuer to deliver air or oxygen directly into the lungs of a patient through a sealed mask placed over the mouth and nose. This is especially important in emergency situations where immediate restoration of adequate ventilation is necessary.

Using a bag-valve-mask can help maintain oxygenation and prevent hypoxia, which can lead to serious complications or death. The technique requires training to ensure proper seal and adequate delivery of breaths, making it a fundamental skill within the BLS protocols.

While a defibrillator is used to restore heart rhythm in cases of cardiac arrest, it is not classified as a BLS tool, as its use is more advanced and usually requires additional training. A ventilator is utilized for long-term mechanical support, which goes beyond the scope of BLS. An IV catheter is typically used for fluid resuscitation or medication administration, which is also not a primary focus of BLS. Thus, the bag-valve-mask stands out as the most appropriate choice for basic life support scenarios.