What type of thermometer measures temperature and displays the result in 2-60 seconds?

• A. Glass Thermometer
• B. Digital Thermometer
• C. Infrared Thermometer
• D. Mercury Thermometer

Answer: (B)

The answer is correct because a digital thermometer is designed to provide a quick and accurate reading of body temperature, typically in a time frame of about 2 to 60 seconds, depending on the specific model and method of use (oral, rectal, or axillary). Digital thermometers utilize electronic sensors to measure the temperature and display the result on a digital screen, making them user-friendly and efficient for both clinical and home use.

In contrast, glass thermometers and mercury thermometers rely on the physical expansion of liquid (mercury or colored alcohol) to indicate temperature, which generally requires a longer time to stabilize at the measurement point, often taking several minutes to provide an accurate reading. Infrared thermometers measure temperature from a distance by capturing the infrared radiation emitted by the body, often providing results almost instantaneously, but they are often not as versatile in terms of measurement sites as digital thermometers.