To check a fever with a thermometer, the steps depend on the type of thermometer being used:
- Oral Thermometer:
- Clean the thermometer before use.
- Place the thermometer under the tongue near the center of the mouth.
- Close the lips gently around the thermometer.
- Keep it in place for about 20 seconds or until it beeps.
- Remove and read the displayed temperature.
- Rectal Thermometer (especially accurate for infants):
- Apply lubricant to the tip.
- Gently insert about 0.5 to 1 inch into the rectum.
- Wait for the thermometer to beep or as directed.
- Remove and read the temperature.
- Ear Thermometer:
- Follow the device instructions.
- Usually involves gently pulling the ear back and inserting the thermometer into the ear canal.
- Wait for a beep, then read the temperature.
- Forehead (Temporal) Thermometer:
- Ensure the forehead is clear of sweat and hair.
- Point the thermometer at the forehead about 3-5 cm away.
- Press the button and wait for the beep.
- Read the temperature on the display.
- Axillary (Armpit) Thermometer:
- Place the thermometer in the armpit.
- Press the arm tight against the body.
- Wait for the beep or the indicated time.
- Read the temperature.
When using any thermometer, ensure it is clean before and after use and follow the manufacturer's specific instructions for the device. Generally, a fever is indicated if the temperature is 100.4°F (38°C) or higher. Avoid using glass mercury thermometers due to safety concerns. Plastic strip thermometers are the least accurate and not recommended for general use. This methodical approach helps to get accurate body temperature readings to check for fever at home.
