Medicine The definition of pyrexia of unknown origin includes all except: A Diagnosis requires fever persisting for 3 weeks B Fever undiagnosed after 1 week of in-patient workup C Absence of immunological compromise D Temperature of 38.3degC or more 💡 Explanation The definition of pyrexia of unknown origin includes all except: ✓ Correct Answer: B. Fever undiagnosed after 1 week of in-patient workup