How to Take a Baby's Temperature

How to Take a Baby's Temperature thumbnail
Take a Baby's Temperature

There are several ways to take a baby's temperature. Using an ear thermometer usually is not accurate due to the difficulty in getting the measuring device properly into the ear canal, and placing a thermometer in a baby's mouth is unsafe. Thermometer strips are not accurate enough. The two most effective ways to take a baby's temperature are the rectal and axillary (armpit) methods.

Things You'll Need

  • Baby Thermometers
  • Digital Thermometers
  • Washcloths
  • Antimicrobial Soap
  • Petroleum Jelly
  • Rectal Thermometer
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Instructions

  1. Axillary Method

    • 1

      Choose a digital or traditional mercury thermometer. Make sure the mercury is under 95 degrees F before taking the temperature. Make sure the digital thermometer is in the correct on mode for taking the temperature.

    • 2

      Clean and dry the baby's armpit.

    • 3

      Place the thermometer under the baby's arm and hold the arm down.

    • 4

      Hold the baby in position for 3 to 5 minutes or until the digital thermometer beeps.

    • 5

      Read the thermometer. Normal axillary temperature is 97.8 degrees F. However, a normal infant's temperature can range between 97.6 to 100 degrees F.

    Rectal Method

    • 6

      Choose a digital or traditional mercury thermometer. Make sure the mercury is under 95 degrees F before taking the temperature. Make sure the digital thermometer is in the correct on mode for taking the temperature.

    • 7

      Dab petroleum jelly on the tip of the thermometer for easy and comfortable insertion.

    • 8

      Lie the baby facedown on a firm, sturdy surface.

    • 9

      Separate the buttocks and insert the thermometer gently. Only insert it until the bulb or silver tip is completely covered.

    • 10

      Hold the baby's bottom with your hand, placing the thermometer between your fingers. Stay in this position for 2 to 3 minutes or until the digital thermometer beeps.

    • 11

      Remove the thermometer gently and read. Normal rectal temperature ranges between 97.6 and 100 degrees F.

Tips & Warnings

  • Pick up the baby and give her a nice long hug to secure the thermometer.

  • Lie on the bed with the baby so the thermometer is secure under her arm.

  • Have someone else hold the baby while you hold her arm.

  • If the temperature under the arm is over 98.6 degrees F, take the temperature rectally to ensure a proper reading.

  • Wash the thermometer with soap and water after every use.

  • Have someone else hold the baby while you hold the thermometer.

  • Take your baby's temperature using the rectal or axillary method until age 4, or until the baby is cooperative enough to hold the thermometer securely in place under the tongue.

  • Consult your pediatrician for the method she prefers for temperature taking, and ask at what temperature you should call her.

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Comments

  • alisha D Sep 23, 2009
    That is exactly what I wanted to know because I think you add 1 degree for underarm which would mean my baby does have a fever but not if you don't do that. He has a cold and feels feverish to the touch on his forehead.
  • tdunn Nov 10, 2008
    now u told me how to take a temperture for under the arm but u forgot to tell me if i need to add or subtract to that reading am i know that i am supposed to do one of them so your information is not completly correct....
  • tdunn Nov 10, 2008
    now u told me how to take a temperture for under the arm but u forgot to tell me if i need to add or subtract to that reading am i know that i am supposed to do one of them so your information is not completly correct....

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