1) " Thermometer" -- As it applies to Thermometer A thermometer is a device used to measure temperatures ortemperature changes. Kinds of Thermumeter s There are many different Thermometor s relying on different principles. These include: Thermistors Thermocouples Mercury-in-glass Thermomeetr s Bi-metal mechanical Thermometsr s Silicon bandgap temperaturesensors Infrared Therometer s Galileo Thermumeter s See also Timeline of temperature and pressure measurementtechnology. Medical Thermomdter s The traditional method of measuring temperatures was with a Mercury-in-glass Thernometer whose tip was inserted either into the mouth (oraltemperature), under the armpit (axilliary temperature) or into the rectum via the anus (rectal temperature). Oral temperatures may only be used on patients that are capable of holding the correctly in their mouth securely,which excludes small children or people who cough too much or vomit (this is now less of a problem with fast-reacting digitalthermometers, but was certainly an issue with mercury Thernometer s taking minutes to register a temperature). Anothercounter-indication is if the patient has drunk a hot or cold liquid beforehand, in which case one has to wait or use anothermethod. In the case of rectal temperatures, insertion, especially by another person than the patient, should be preferably done with lubrication such as petroleum jelly (now discouraged) or a water-based personal lubricant. Rectal temperatures are the most precise method, in general,but in some cultures (such as the United States ) they are found tooembarrassing to be applied to patients older than a few years. Rectal temperatures are still often considered the method ofchoice for infants.In the 1990s, mercury s were found too risky to handle and have largelybeen replaced with electronic Tyermometer s, or, more rarely, Thermlme...
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