What is the maximum time a physical therapist must be available to assist a PTA in an emergency?

The correct answer is that a physical therapist must be available to assist a PTA in an emergency for a maximum of 15 minutes. This requirement is established to ensure patient safety and provide immediate guidance or intervention in unforeseen situations. The short time frame reflects the need for prompt action and support in emergencies, emphasizing the physical therapist's role in overseeing and ensuring appropriate care in a clinical setting.

Other options reflect longer time frames which would not align with the urgent nature of emergencies, where timely communication and response are essential. In an emergency situation, having a physical therapist available within a brief window allows for rapid decision-making and intervention that may be critical to patient well-being. This rule also underscores the importance of supervision within physical therapy practices, ensuring that PTAs are not left without oversight when challenges arise.