Final answer:
When applying a cold dry application such as an ice bag, look for a decrease in swelling, numbing of pain, and a reduction in inflammation, while also monitoring for any signs of skin damage like frostbite.
Step-by-step explanation:
Observations to make when a resident applies a cold dry application, typically using an ice bag, include looking for signs of reduced swelling, numbing of pain, and a decrease in inflammation. The ice bag is particularly effective as a 0°C ice would absorb more energy than the same amount of 0°C water, providing a more intense cooling effect to the treated area. It is crucial to monitor the skin for any signs of frostbite or irritation, especially in individuals with sensitive skin or circulatory problems. As ice bags can cause the skin temperature to drop significantly, it is advisable to check the skin at regular intervals to prevent tissue damage.