What technique should be used for chest compressions on a 6-month-old infant?

The encircling thumbs technique is the most appropriate method for performing chest compressions on a 6-month-old infant. This technique involves using both hands to provide support to the infant’s back while the thumbs compress the chest. It allows for effective compressions while ensuring that the airway remains open and the infant's comfort is prioritized. The encircling thumbs technique not only provides adequate depth and rate of compressions but also stabilizes the infant, allowing for better circulation support.

Using this method is particularly important in infants because their bodies are much smaller and more fragile compared to older children and adults. This technique also minimizes the risk of injury to the rib cage and vital organs, which can be a greater concern in younger patients.

Other methods, such as the two-finger technique, may be more appropriate for smaller infants but can be less effective in providing the needed depth and consistency for proper compressions. The two-hand and one-hand techniques are generally more suited for older children and adults. Each of these alternative techniques carries a risk of providing inadequate compression depth or causing unnecessary harm due to a lack of stabilization. Thus, the encircling thumbs technique is the recommended method for performing high-quality chest compressions on an infant at this age.