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Pyrexia of Unknown Origin (PUO), Special: Tissue/aspirate for histology,…
Pyrexia of Unknown Origin (PUO)
Definition of Pyrexia
Temp >38.3 for >3 weeks,
With NO identifiable cause after:
-3 days inpt evaluation or 3 outpt visits
Grading Temp
Mild fever (37-38°C)
Moderate fever (38.1-39°C)
High fever (39.1 -40°C)
NB Ass symp
Rigors
Rash
Itching
Night sweats
Fatigue
Weight loss
Pain
Swelling
Classifications of PUO
Temporal arteritis
Sarcoidosis
Polymyalgia Rheumatica
SLE
Vasculitis
Adult stills disease
Inflammation
Metastatic Ca
Leukemia
Lymphoma
Renal cell Carcinoma
Malignancy
Sinusitis
Endocarditis
TB
Abdo abscesses
CMV or EBV infections
Infection
Dx-induced fever
Thrombosis-related fever
Hyperthyroidism
Factitious fever (self-induced)
Unidentified
OTHER:
NB Exam findings
Oral cavity
Gums & mucosa for ulcers or plaques
Cardio
Murmurs (endocarditis)
Temporal a
Tenderness
Abdo
Organomegaly or masses
Skin & nails
Rashes, Janeway lesions, Oslers nodes
Lymph nodes
Generalized or localized lymphadenopathy
Neuro
Focal signs
Bones & joints
Tenderness or swelling
Diagnosis / Ix
Bloods
FBC
CRP /ESR (inflam)
U&Es
LFTs
Bone profile ( minerals, proteins, and enzymes within the bones)
HIV serology
LDH (indicator of lymphoma)
Cultures:
Bloods (3 sets from diff sites)
Urine MCS
Imaging
CXR, CT CAP (organ involvement/mass)
Bedside
Urinalysis
ECG
Special: Tissue/aspirate for histology, culture & PCR