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Advantages of taking temperatures at the ear versus traditional
sites:
-
e Axillary temperature readings only reflect skin temperature
which may not indicate the internal body temperature.
® Rectal temperatures often lag significantly behind internal body
temperature changes, especiaily at times of rapidly changing
temperatures.
e Oral temperatures are often influenced by eating, drinking,
thermometer placement, breathing through the mouth, or the
inability of the person to close their mouth completely.
Body temperature
Normal body temperature is a range, The following table! shows
that ranges of normal also vary by site. Therefore, readings from
different sites, even if taken at the same time, shouid not be directly
compared.
Axillary:
94.5ºF - 99.1°F
34.7°С - 37.3°С
Oral:
95.9°F - 99.5°F
35.5°C - 37.5°C
Rectal:
97.9°F -100.4°F
36.6°С - 38.0°С
ThermoScan?:
96.4°F -100.4°F
35.8°C - 38.0°C
Also, a person's normal temperature range tends to decrease with
age. The foliowing table shows normal ThermoScan ranges by age.
Normal ThermoScan temperature ranges?
0-
2 years
97.5°F - 100.4°F
36.4°C - 38.0°C
3 - 10 years
97.0°F - 100.0°F
36.1°C - 37.8°C
11 - 65 years
96.6"F -
99.7°Е
35.9°C - 37.6°C
> 65 years
96.4°F - 99.5°F
35.8°C - 37.5°C
The range of normal varies from person to person and can be
influenced by many factors such as time of day, level of activity,
medications and gender.
1. Ghamberlain, J.M., Terndrup, T.E., New Light on Ear Thermometer Readings,
Contemporary Pediatrics, March 1994.
2. Chamberlain, J.M., et al., Determination of Normal Ear Temperature with an Infrared
Emission Detection Thermometer, Annals of Emergency Medicine, January 1995.
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