How to Take Your Temperature and Get the Most Accurate Reading

If you're feeling under the weather, it's helpful to know whether you're running a fever. The reading you get on your home thermometer can vary based on your technique. Here's how to get an accurate reading.

Instructions

Difficulty: Moderately Easy

1. Use an accurate thermometer.
   
   Although digital thermometers have replaced the old-fashioned mercury ones in many cases, the mercury thermometer still gives a more accurate reading. Sometimes simpler is better.
2. Resist the urge to talk.
   
   Talking while you have a thermometer in your mouth is almost sure to alter the results by allowing cooler air to enter your mouth. Hold your thoughts until the thermometer comes out.
3. Don't eat or drink before taking your temperature.
   
   Hot or cold foods or liquids can give a false reading. Hold off on eating or drinking for at least ten minutes before taking your temperature.
4. Don't remove it prematurely.
   
   The longer you leave the thermometer in your mouth, the more accurate the reading will be. Conventional wisdom states that a thermometer should be kept under your tongue for three to five minutes. An additional minute of two is even better.
5. Position the thermometer accurately.
   
   Make sure the thermometer is placed securely under your tongue to get the most accurate reading.