Monitoring Laboratory Work

Preoperative Laboratory Tests:

  • BMP, CBC, LFTs, Uric acid, Vit D(OH 25), Vit B12, Fe, Ferritin, Calcium, INR, Lipid panel, TSH, Free T4, Thiamin, Folate, HgA1C, Urinalysis

3 Month Post-Operative:

  • CBC, Fe, Vit B12, Vit D

6 Month Post-Operative:

  • CBC, Fe, Vit B1, VIT B12, Vit D

Yearly Post-Operative:

  • “CBC, CMP, Fe, Copper, Folate, PTH, Vit A, Bit B1, Vit B12, Vit D, Vit E, Vit K, Zinc


  • 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, B12, Thiamin, Folate, and any other tests appropriate
  • Patients with any deficiency are treated accordingly and re-measured in 3 months
Note: These are general recommendations. Other dieticians, bariatric programs, and professional societies may have varied recommendations.