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For how long should an oral glass thermometer be left in the mouth?

  1. 1-2 minutes

  2. 2-3 minutes

  3. 3-4 minutes

  4. 4-5 minutes

The correct answer is: 1-2 minutes

An oral glass thermometer should be left in the mouth for 1-2 minutes to obtain an accurate temperature reading. This is the recommended time frame for checking oral temperatures using a glass thermometer. It is important to follow this guideline to ensure an accurate and reliable measurement. The other options are incorrect because they suggest leaving the thermometer in the mouth for longer periods of time, which is unnecessary and may lead to inaccurate readings. It is important to adhere to the established standard of 1-2 minutes for obtaining oral temperature readings with a glass thermometer.