What is an acceptable temperature for the water in a hot pack machine if patients are reporting strong heat?

The acceptable temperature for the water in a hot pack machine is around 71 degrees Celsius (160 degrees Fahrenheit). This temperature is generally considered effective for therapeutic heating without posing a high risk of burns or thermal injury to patients. In a clinical setting, using this temperature helps achieve the desired effects of heat therapy, such as increased tissue extensibility and pain relief, while also ensuring safety during treatment.

Higher temperatures, such as those in the other options, can significantly increase the risk of burns and discomfort for patients. Therefore, maintaining water at 71 degrees Celsius strikes an ideal balance between efficacy and safety, aligning with guidelines for effective thermal modalities in physical therapy practice.