How to Take A Baby's Temperature Rectally

Fever is a protection for the body. An elevation in body temperature may mean there is an infection somewhere in the body. If you suspect your child has a fever, simply putting your hand to his forehead isn't enough. You must get an accurate measurement of his fever. Taking a child's temperature rectally, especially if he is an infant, is the best way to ensure a precise measurement. Read on to learn how.

Things You'll Need

  • A rectal or digital thermometer
  • Lubricant such as petroleum jelly
  • A mobile or child's favorite toy
  • Diaper changing supplies
  • Soap and hot water
  • Rubbing alcohol
  • Pen or pencil

Instructions

    • 1

      Gather your equipment, including a toy or mobile to distract the baby.

    • 2

      Lay the baby down on a flat surface or hold him across your lap. Firmly hold the baby in place with your free hand.

    • 3

      Lubricate the thermometer and insert it into the anus no more than 1/2 to 1 inch.

    • 4

      Don't be surprised if the baby cries. Speak to him calmly as you hold him firmly to prevent him from squirming.

    • 5

      Remove the thermometer gently when you hear the beep or tone indicating that the temperature is ready, or if three minutes has passed.

    • 6

      Note the temperature, the time of day and how active your baby was at the time.

    • 7

      Wash your hands and the thermometer thoroughly. You may wish to swab the thermometer with rubbing alcohol. Store it in a dry location at room temperature.

    • 8

      Call your baby's doctor if his temperature is elevated for more than 24 hours or if it is above 100 F degrees. A fever is present if the rectal temperature reads 100.4 F degrees or higher.

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