Which nutrient is explicitly listed as a preoperative lab test in bariatric preparation?

Which nutrient is explicitly listed as a preoperative lab test in bariatric preparation?

• A. Calcium
• B. Potassium
• C. Magnesium
• D. Iron

Answer: (D)

In bariatric preparation, identifying nutritional deficiencies before surgery is essential because they can affect anesthesia risk, wound healing, and recovery. Iron status is specifically checked because iron deficiency anemia is common in people preparing for bariatric procedures and can complicate the operation and postoperative healing. Testing iron studies (such as serum iron and ferritin) helps detect deficiency early so it can be treated—often with supplementation—before surgery. Since future bariatric patients are at an increased risk of iron deficiency due to limited intake and, later, reduced absorption after many procedures, establishing baseline iron status is a priority in the preoperative workup. While calcium, potassium, and magnesium are important minerals to monitor in general care, iron is the nutrient that is explicitly highlighted in the bariatric preoperative lab panel for this reason.