A device and method for alerting attending medical personnel of a patient's potential risk of injury due to unwanted blood pressure measurements, intravenous access and venipuncture includes placing a sleeve on the patient's affected arm or leg. The sleeve is formed of a latex free soft fabric which is stretchable to provide a snug, comfortable fit for a range of patient sizes. The sleeve is open at both ends to permit ease of placement and removal on the patient's arm or leg. The exterior surface of the sleeve has easily visible instructions to indicate that no blood pressure, I.V. or venipuncture is to be performed on the arm or leg which wears the sleeve.