Which of the following indicators may suggest cardiopulmonary distress during a physical restraint?

The indicator that suggests cardiopulmonary distress during a physical restraint is difficulty breathing. This is a critical sign that alert responders to potential respiratory distress, which can occur during physical restraints due to the pressure applied to the thoracic area or restricted movement. Difficulty breathing indicates that the individual may not be getting enough oxygen, which is a serious medical concern that requires immediate attention.

In the context of physical restraint, monitoring a person's ability to breathe is essential, as inadequate breathing can quickly escalate to more severe complications, including respiratory failure. It is crucial for those trained in Crisis Prevention Intervention (CPI) to be vigilant for this sign to ensure the safety and well-being of both the individual in restraint and those involved in the intervention.