Pyrexia Of unknown Origin

Question 1

Classical definition

Answer 1

Temperature 38+ on multiple occasions
Illness of 3+ weeks
No diagnosis despite 1+ week inpatient

Question 2

Investigations

Answer 2

Bloods: FBC, U+Es, LFTs, bone profile, clotting, CRP, TFTs, B12, folate, ferritin, LDH
Autoimmune screen - RF, pANCA, C3 and 4 etc.
Multiple blood cultures
Swabs
CXR
CT