Inflammation Tests: C-Reactive Protein (CRP) Erythrocyte Sedimentation Rate (ESR) Kidney Function Tests: Glomerular Filtration Rate (GFR) Creatinine Urea (Kidney Function) Liver Function Tests: Liver Enzyme (AST) Liver Enzyme (ALT) Liver Enzyme Levels Blood Sugar Test: Fasting Blood Sugar Vitamins: Vitamin B12 Salts and Minerals: Uric Acid Urine and Stool Tests: Complete Urinalysis Thyroid Function Tests: Thyroid Stimulating Hormone (TSH) Free Thyroxine (Free T4) Free Triiodothyronine (Free T3)