You may need to hold the thermometer and hold your child at the same time to get a correct temperature. For safety, never leave a child alone while you are using a thermometer. If using a glass thermometer not recommended , it may take a little longer to get a correct temperature. Remember: You are placing a piece of glass in your child's body.
Never leave your child alone while taking his temperature. Glass mercury thermometers are no longer recommended and can be dangerous.
There are serious health risks if a glass mercury thermometer breaks. Mercury is toxic if inhaled or if the liquid touches the skin. Mercury-free glass thermometer. Mercury-free glass thermometers have a silver tip. A silver line runs along the numbers to show the temperature.
You may see a blue line filling the extra space that is not taken by the silver line. For children older than 2, temperatures can also be taken by ear or, if the child is able to sit still long enough, by mouth. The most accurate way to take a temperature is in the bum rectal method.
See the section on the rectal method to learn how safely take a rectal temperature. The mouth method can be used for children who are older than 5 years of age. It is not recommended for children younger than 5 years of age, because it is hard for them to hold the thermometer under their tongue long enough.
The ear method is recommended for children older than 2 years old. The rectal method can be used to check for fevers in newborns and young children. Use a rectal thermometer only if you are comfortable doing so and a health care provider has shown you how to do it safely. For more detailed instructions on how to take a temperature using the rectal method, speak to your health care provider.
After a thermometer has been used to take a rectal temperature, do not use it to take an oral temperature. Make sure that the rectal thermometer is clearly marked so that it is not used orally. The armpit method is less accurate and is normally only used if the person is extremely drowsy or not clear mentally.
Temperatures may vary throughout the day, rising as much as 1 degree in the morning and reaching a maximum during the late afternoon. Mild increases may be caused by exercising, too much clothing or bedding, taking a hot bath or being outside in hot weather.
Temperature regulation and the pathogenesis of fever. Philadelphia, PA: Elsevier; chap Fever: pathogenesis and treatment.
Philadelphia, PA: Elsevier; chap 4. Updated by: Linda J. Editorial team. Temperature measurement. How the Test is Performed. Mouth: Place the probe under the tongue and close the mouth. Breathe through the nose. Use the lips to hold the thermometer tightly in place. Leave the thermometer in the mouth for 3 minutes or until the device beeps.
Rectum: This method is for infants and small children. They cannot hold a thermometer safely in their mouth. Place petroleum jelly on the bulb of a rectal thermometer.
Place the child face down on a flat surface or lap. Be careful not to insert it too far. Struggling can push the thermometer in further.
Remove after 3 minutes or when the device beeps. Armpit: Place the thermometer in the armpit. Press the arm against the body. Wait for 5 minutes before reading.
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