Table 1.

Investigation of ME/CFS: routine laboratory testing.

Complete blood count with differential Erythrocyte sedimentation rate Electrolytes Calcium Phosphate Fasting glucose C-reactive protein Liver function: bilirubin, alkaline phosphatase, gamma glutamyl transaminase, alanine transaminase, aspartate transaminase Total protein, albumin/globulin ratio

Renal function: urea, creatinine, glomerular filtration rate Thyroid function: thyroid stimulating hormone, free thyroxine (free T4) Anti-nuclear antibodies Iron studies: serum iron and transferrin or ferritin Vitamin B 12 and folate Vitamin D3, 25-hydroxy cholecalciferol Celiac screening: tissue transglutaminase IgA and IgG, with serum IgA Urinalysis