Which of the following conditions would indicate that rescue breathing is necessary?

Rescue breathing is essential in a situation where a person exhibits no pulse and no breathing. This condition indicates that the heart is not circulating blood, leading to a lack of oxygen being delivered to the body's vital organs. Without immediate intervention, such as rescue breathing, brain damage and death can occur within minutes due to oxygen deprivation. When there is no pulse, it is critical to provide rescue breaths to attempt to supply oxygen to the lungs and ensure that any remaining blood in the system is adequately oxygenated until more advanced medical help can be reached.