Laboratory Work Preoperative Laboratory Tests: CBC CMP Uric acid Vit B1 (Thiamine) Vit B12 Vit D(OH 25) Fe (Iron) Ferritin Calcium PT/INR PTT Lipid panel TSH Free T4 Folic Acid HgA1C Urinalysis 3 Month Post-Operative: CBC BMP Vit B1 (Thiamine) Vit B12 Folic Acid 6 Month Post-Operative: CBC CMP Vit B1 (Thiamine) Vit B12 Folic Acid Fe (Iron) Yearly Post-Operative: CBC CMP Vit B1 (Thiamine) Vit B12 Vit D(OH 25) Fe (Iron) Ferritin Lipid panel TSH Free T4 Folic Acid HgA1C Additions: Patients with a history of diabetes have HgA1C measured every 3 months until normalized Patients presenting to the emergency room are tested for CBC, CMP, Iron, Calcium, Vitsmin B12, Vitamin B1 (Thiamine) and any other laboratory and imaging tests as appropriate. Patients with any deficiency are treated accordingly and re-measured in 3 months. Emergency Care of Bariatric Surgery Patients: Handy flow-sheet provided by the ASMBS. Note: These are general recommendations. Other dieticians, bariatric programs, and professional societies may have varied recommendations.