Thank you for your question and for providing your lab details. Low cholinesterase levels can be concerning in certain medical contexts, particularly when anesthesia is involved, but the fact that both your surgeon and anesthesiologist have approved you for surgery is very reassuring. Cholinesterase is an enzyme that helps metabolize certain drugs, including specific types of anesthetics like succinylcholine (a muscle relaxant often used during general anesthesia). Low levels of this enzyme could theoretically lead to prolonged effects of these drugs. However, modern anesthesia protocols rarely rely solely on succinylcholine and can easily adapt to your individual metabolic profile. Why Your Surgeon and Anesthesiologist Cleared You: Your Levels Are Mildly Below Normal: A level of 6500 is slightly below the standard range of 7000–19000. This is not critically low, and adjustments in anesthesia management can easily account for this. Individualized Anesthesia Plan: Your anesthesiologist is aware of your cholinesterase level and can choose alternative medications or dosages to ensure a smooth and safe surgery. Routine Testing and Monitoring: During your procedure, your anesthesia team will closely monitor your vital signs, oxygen levels, and muscle relaxation to respond promptly to any issues. What You Can Do: Communicate Any Concerns: If you’re still anxious, discuss your questions directly with your anesthesiologist before surgery. They can explain how your levels are factored into their anesthesia plan. Stay Healthy Before Surgery: Maintain a balanced diet, stay hydrated, and follow all preoperative instructions to ensure optimal surgery and recovery conditions. Final Thoughts: Low cholinesterase levels are something your anesthesia team will carefully consider but are unlikely to pose a significant issue for your tummy tuck. With proper planning and monitoring, you should have a safe surgical experience. Wishing you a successful procedure and excellent results! Sincerely, J. Timothy Katzen, MD, FACS