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2. Fever Definition: Clinically, fever is defined as a BT
≥ 1.8°F (1°C) above the mean standard deviation at the
site of recording.
2
A single oral temperature of ≥ 101°F (38.3°C ) in the ab-
sence of obvious environmental causes is usually consid-
ered fever. An oral temperature of
≥ 100.4°F (38.0°C )
over at least 1 hour indicates a fever state.
3
A single arterial temperature >101.8°F (38.8°C) in the ab-
sence of obvious environmental causes is usually consid-
ered fever. An arterial temperature >101.2°F (38.4°C)
over at least 1 hour indicates a fever state.
While the above are recommended guidelines, not all fe-
vers require laboratory tests, and clinical assessment in
concert with standard hospital protocol for fever workups
should always prevail.
3.
Oral Temperature Risks: Oral temperature can be clini-
cally misleading, and many febrile patients can have a
“normal” temperature.
4
Mouth breathing, tachypnea,
heated gases, and hot or cold fluids can distort the read-
ing, as can intubation or inability of the patient to cooper-
ate. Accordingly, comparisons with TA may not be reli-
able
.
Clinical Information
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