What piece of equipment is most likely to be carried by an athletic trainer to be used in conjunction with cardiopulmonary resuscitation (CPR)?

The most appropriate piece of equipment that an athletic trainer would carry for use in conjunction with cardiopulmonary resuscitation (CPR) is a pocket mask. A pocket mask is specifically designed to provide a barrier between the rescuer and the patient during rescue breathing. This device allows the rescuer to deliver breaths effectively while minimizing the risk of airborne transmission of infectious diseases.

The importance of the pocket mask lies in its ability to fit snugly over the mouth and nose of the victim, ensuring that the air delivered is effectively contained without leakage. This ensures a more efficient delivery of oxygen during the CPR process.

Other equipment, while valuable in emergency situations, does not directly facilitate the immediate act of rescue breathing with the same level of efficacy as the pocket mask. An AED, for instance, is crucial for defibrillation in cases of cardiac arrest but does not assist with the ventilation component of CPR. Training mannequins are useful for practicing CPR techniques but are not carried for real-life emergency scenarios. A first aid kit contains various medical supplies that can be beneficial for numerous injuries but does not specifically cater to the needs of CPR. Thus, the pocket mask stands out as an essential tool for any athletic trainer in emergency situations involving respiratory distress.