Final answer:
The compression to breath ratio for child BLS with one rescuer is 30:2. This includes giving 30 chest compressions followed by 2 rescue breaths with the aim of maintaining blood flow, especially to the brain.
Step-by-step explanation:
For a child who requires cardiopulmonary resuscitation (CPR), a single rescuer should administer a compression to breath ratio of 30:2. This means the rescuer should give 30 chest compressions followed by 2 rescue breaths. When providing CPR, it is essential to compress the chest at least one-third the depth of the chest, about 5 cm (2 inches), and at a rate of approximately 100 to 120 compressions per minute. Compression quality is of the utmost importance, aiming to maintain blood flow, particularly to the brain, to prevent or minimize damage due to lack of oxygen.
It is also critical to note that for infants under 1 year of age, except for newborns during the first few minutes after birth, the compression to breath ratio remains 30:2 when CPR is performed by a single rescuer. However, if there are two rescuers, they may use a 15:2 ratio.
CPR techniques and recommendations can change, so it is important for individuals to stay updated with current guidelines from recognized health organizations or through certified training programs.