W81: Confined to or trapped in a low-oxygen environment

Being confined to or trapped in a low-oxygen environment refers to a group of conditions that occur when an individual is unable to access sufficient quantities of oxygen for an extended period of time. This can happen in a variety of situations, such as being trapped in a confined space, submersion underwater, or exposure to an environment with reduced oxygen levels. Common symptoms include shortness of breath, rapid breathing, restlessness, chest pain, or confusion, which can escalate to loss of consciousness or even cardiac arrest in severe cases as the body's tissues and organs do not receive the required oxygen to function properly. It can have long-term effects if not immediately addressed, potentially causing organ failure, brain damage, and other complications. These conditions are considered acute medical emergencies requiring immediate intervention. The progression and severity of these conditions largely depend on the amount of time the individual spends in the low-oxygen environment and their overall health status.