CT, computed tomography, MRI, magnetic resonance imaging; USS, ultrasound scanning. | |
Blood tests | Antinuclear antibody, immunoglobulins, celiac serology, Lyme disease, toxoplasma, brucellosis antibodies, copper and caeruloplasmin, cortisols and synacthen test, B12, folate, ferritin, blood carboxyhaemoglobin |
Urinalysis | Organic acids, amino acids, toxicology screen |
Imaging | Chest x ray, MRI, CT or USS |