**Core Concept**
The management of burn wounds involves careful consideration of wound cooling to prevent further damage and promote healing. The ideal temperature for cooling burn wounds is crucial to prevent hypothermia and minimize tissue damage.

**Why the Correct Answer is Right**
Cooling burn wounds with water at a temperature of 15°C is recommended because it effectively reduces the temperature of the wound surface without causing hypothermia. This temperature is close to the ambient temperature, which helps to slow down the metabolic processes in the damaged tissue, reducing the risk of further damage. The temperature of 15°C is also closer to the normal body temperature, making it easier to maintain the patient's overall body temperature.

**Why Each Wrong Option is Incorrect**
**Option A:** 20ºC is too warm for effective cooling of burn wounds, as it may not adequately reduce the temperature of the wound surface, potentially leading to further tissue damage.
**Option B:** 25ºC is even warmer, which would be counterproductive in cooling burn wounds, and may cause more harm than good.
**Option C:** 10ºC may be too cold, potentially leading to hypothermia, especially in older patients or those with pre-existing cardiovascular conditions.

**Clinical Pearl / High-Yield Fact**
When cooling burn wounds, it is essential to use a temperature that is close to the ambient temperature to prevent further tissue damage and maintain the patient's overall body temperature.

**✓ Correct Answer: D. 15ºC Water at 15°C is used to cool burn wounds.**