Fever measurement of body temperature in fever

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Measurement of Body Temperature in Fever

When a patient has or is suspected of having a fever, that person's body temperature is measured using thermometer. At a first glance, fever is present if:

• Temperature in the anus (rectum/rectal) or in the ear (otic) is at or over 38.0°C (100.4°F)
• Temperature in the mouth (oral) is at or over 37.5°C (99.5°F)
• Temperature under the arm (axillary) is at or over 37.2°C (99.0°F)

References

[Category:Emergency medicine]]