CRISTINA PEDRAZZINI / SCIENCE PHOTO LIBRARY CRISTINA PEDRAZZINI / SCIENCE PHOTO LIBRARY
Thermometer. Clinical thermometer, used to measure the body temperature of patients. This mercury thermometer has a scale in degrees Celsius and Fahrenheit. The red arrow on the scale indicates normal body temperature, which is 37 degrees Celsius or 98.6 degrees Fahrenheit. This sort of thermometer can be used to take the patient's temperature under their arm or under their tongue.
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