When delivering ventilations with a bag-valve-mask (BVM) to an adult patient, which of the following is correct?

Using the C-E hand position while delivering ventilations with a bag-valve-mask (BVM) is the correct approach because it allows for an effective seal of the mask on the patient’s face. The "C" refers to the shape of the hand used to compress the mask against the patient's face, where the thumb and index finger form the letter 'C' around the mask. The 'E' represents the other fingers which are used to open the airway, specifically by pushing the jaw forward. This technique maximizes the ability to create an airtight seal, ensuring efficient ventilation and reducing the risk of insufficient air delivery.

The other options are not correct in this context. Using one hand only to seal the mask compromises the effectiveness of the seal, which can lead to inadequate ventilation. Providing ventilations without checking for chest rise is also inappropriate, as monitoring chest rise is essential to confirm that the air is entering the lungs properly. Lastly, employing a one-person technique for BVM ventilation is not advisable when possible, as having two providers can help ensure a better seal and support the airway management process.