When performing CPR alone, what is an appropriate technique for optimal effectiveness?

Using both hands on the chest during CPR is considered the most effective technique when performing CPR alone. This approach allows for better distribution of force and greater depth of compressions, which is essential for maintaining adequate circulation to vital organs during cardiac arrest. The use of both hands helps to generate the necessary pressure needed to compress the chest effectively.

When performing compression-only CPR, the goal is to maintain a rate of 100 to 120 compressions per minute and ensure that compressions are at least 2 inches deep while allowing the chest to fully recoil between compressions. Utilizing both hands not only enhances the effectiveness of each compression but also aids in the stamina of the rescuer, enabling them to perform high-quality CPR for a longer duration.

Other techniques mentioned, like propping the patient up, would hinder the effectiveness of compressions, as proper positioning is crucial for optimal depth. Alternating between breaths and compressions every 5 seconds is also not standard CPR protocol for a single rescuer; rather, the focus should be on continuous compressions. Switching positions frequently may disrupt the rhythm of compressions and is generally more applicable to situations with multiple rescuers, where shifts can help manage fatigue.