The Nurse Has Applied an Aquathermia Pad to a Client's

The nurse has applied an aquathermia pad to a client's back.After 15 minutes of treatment,the client says that the pack is no longer warm and asks the nurse to increase the temperature.How should the nurse evaluate this request?

A) The client's thermal tolerance is higher than normal; increasing the temperature is necessary.
B) This client is experiencing a rebound effect from the application of moist heat.
C) Adaptation of the thermal receptors often results in the decreased sensation of warmth.
D) The aquathermia pad should be replaced with a standard hot pack.