FEVER

Symptoms | When to call | Homecare Advice

How to take the temperature

Common misconceptions about fever

Symptom Definition

Fever is the only symptom
Rectal temperature above 100.4°F (38.0°C).
Oral temperature above 99.5°F (37.5°C).
Axillary (armpit) temperature above 99.0°F (37.2°C).
Pacifier temperature above 100°F (38.0°C). New digital electronic ones are accurate.
Ear (tympanic) temperature above 100.4°F(38.0 C) (Note: Not reliable for less than 6 months old.)
Temporal artery (TA) temperature above 100.4 F (38.0 C) (Note: more reliable than tympanic thermometers, but not to be used for children under 6 months old)

Causes

Main cause: colds and other viral infections. Fever may be the only symptom for the first 12-24 hours (ie viral fevers). The onset of symptoms (runny nose, cough, diarrhea, etc.) are often delayed. In the case of Roseola, fever may be the only symptom for 2 or 3 days. The cause of the fever often can't be determined during the first 24 hours.

See More Appropriate Topic (instead of this one) If

Other symptom is present with the fever, see that topic (e.g., COLDS, COUGH, SORE THROAT, EARACHE, SINUS PAIN, DIARRHEA, VOMITING, RASHES, WIDESPREAD AND CAUSE UNKNOWN).

Disclaimer: This information is not intended be a substitute for professional medical advice. It is provided for educational purposes only. You assume full responsibility for how you choose to use this information.

Reviewed 8/2004

Revised 8/2004

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