Urinary Temperature

Abstract
Patients with fever of undetermined origin are often perplexing, but perhaps most challenging are those with factitious or spurious fever.1 2 3 The ways in which patients may inject or ingest pyrogenic materials or, much more commonly, manipulate thermometers are legion4 5 6 7 and attest to their great ingenuity.4 The diagnosis of factitious fever is usually not made easily, and patients often undergo prolonged and costly evaluations as well as potentially dangerous procedures. Useful clinical clues suggesting spurious fever have been reported by others.1 , 4 However, methods for actually diagnosing factitious fever, although varied,4 , 6 7 8 9 10 are not always successful.4 , 8 Having recently measured simultaneous oral, rectal and . . .

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