A nurse in a long-term care facility is collecting data from an older adult client. Which of the following findings indicates that the client might be dehydrated?

Choice A reason: Filling the pad with sterile water is not necessary, as tap water can be used for an aquathermia pad without increasing the risk of infection or contamination.

Choice B reason: Using safety pins to secure the pad in place is not appropriate, as they can puncture or damage the pad and cause leakage or electric shock.

Choice C reason: Applying the pad for 45 min at a time is not recommended, as it can cause skin burns or tissue damage due to prolonged exposure to heat. The nurse should apply the pad for no more than 20 min at a time and check the skin frequently for signs of redness or blistering.

Choice D reason: Covering the pad prior to use is an important action, as it can prevent direct contact between the pad and the skin and reduce the risk of burns or irritation. The nurse should use a towel or a cloth to cover the pad before applying it to the affected area.

Choice A: This is incorrect because Sims position is used for clients who have lower back pain, abdominal surgery, or enemas. It is not appropriate for clients who have a closed head injury.

Choice B: This is incorrect because modified Trendelenburg position is used for clients who have hypovolemic shock or poor venous return. It is not appropriate for clients who have a closed head injury.

Choice C: This is correct because semi-Fowler's position is used for clients who have increased intracranial pressure, respiratory distress, or head trauma. It elevates the head and chest to reduce cerebral edema and facilitate breathing.

Choice D: This is incorrect because prone position is used for clients who have acute respiratory distress syndrome, spinal cord injury, or pressure ulcers. It is not appropriate for clients who have a closed head injury.