Mercury (element) is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, mercury relays, fluorescent lamps and other devices, though concerns about the element's toxicity have led to mercury thermometers and sphygmomanometers being largely phased out in clinical environments in favor of alternatives such as alcohol- or galinstan-filled glass thermometers and thermistor- or infrared-based electronic instruments. Likewise, mechanical pressure gauges and electronic strain gauge sensors have replaced mercury sphygmomanometers. Mercury remains in use in scientific research applications and in amalgam for dental restoration in some locales. It is also used in fluorescent lighting. Electricity passed through mercury vapor in a fluorescent
Risk Evaluation and Mitigation Strategies clinicians or health care institutions to become certified prior to prescribing. 12% include only a "communication plan" REMS element which is informational in nature. These communication plans are typically composed of letters, websites, and fact sheets describing the specific safety risks identified in the REMS. 26% include only the "medication guide" REMS element. Risk Evaluation and Mitigation Strategies Risk Evaluation and Mitigation Strategies is a program of the US Food and Drug Administration for the monitoring of medications with a high potential for serious adverse effects. REMS applies only to specific prescription drugs, but can apply to brand name or