Coating solutions having anti-reflective and anti-static properties, a coating derived therefrom, a substrate coated with the coating and methods for their preparation. In one embodiment, the polyolefin foams may be cross-linked, closed-cell polyethylene foams with a density of from about 2 pounds per cubic foot to a density of about 4 pounds per cubic foot. The user interface element is indicative of an alarm and configured to enable the user to modify alarm functionality of the patient monitor for an intentional clinical task that caused the sudden and substantial change in the measured arterial blood pressure.