Assessing device fit involves several steps: - Visual Inspection: Check for redness, swelling, or skin abrasions. - Patient Feedback: Ask the patient about comfort and any pain or discomfort. - Functional Testing: Ensure the device is working as intended, such as checking the seal of a CPAP mask or the alignment of a brace. - Measurement: Use tools to measure and confirm that the device matches the patient’s anatomical dimensions.