Bariatric Surgery Workup
Preparing for weight-loss surgery: what to expect during your preoperative evaluation, timeline, and required testing.
Choosing bariatric surgery is an important step toward improving your health. Before surgery, every patient completes a comprehensive medical evaluation to make sure the procedure is as safe and successful as possible. Although every patient is different, most people complete several evaluations over approximately three months while fulfilling insurance requirements and nutritional counseling.
Why Is a Bariatric Surgery Workup Necessary?
The goal of the preoperative evaluation is not to delay surgery—it is to optimize your health and reduce the risk of complications.
- Confirm that bariatric surgery is appropriate for you
- Identify medical conditions that should be treated before surgery
- Reduce surgical and anesthesia risks
- Prepare you for lifelong nutritional changes
- Meet insurance requirements when applicable
- Develop an individualized surgical plan
Your Bariatric Surgery Journey
Step 1
Initial Consultation
During your first visit, Dr. Bao Nasri will review your medical history, previous weight-loss efforts, current medications, and health goals. Together, you'll discuss whether bariatric surgery is an appropriate option and which procedure may best fit your needs.
Learn more → First ConsultationStep 2
Nutrition Evaluation
Most insurance plans require approximately three months of supervised nutrition visits. You will learn healthy eating habits, protein goals, hydration strategies, portion control, vitamin supplementation, and lifestyle changes needed after surgery.
Learn more → Nutrition EvaluationStep 3
Medical Clearance
Your primary care provider will review your overall health to help ensure you are ready for surgery. Depending on your medical history, additional specialty evaluations may also be recommended.
Learn more → Medical ClearanceStep 5
Sleep Study (If Needed)
Obstructive sleep apnea is common in patients with obesity and often goes undiagnosed. If sleep apnea is suspected, your surgeon may recommend a sleep study before surgery.
Learn more → Sleep StudyStep 6
Psychological Evaluation
A psychological evaluation is a routine part of many bariatric surgery programs. The goal is not to "pass or fail" but to ensure you understand the lifestyle changes required after surgery.
Learn more → Psychological EvaluationStep 7
Laboratory Testing
Routine blood work helps identify conditions that may require treatment before surgery, including blood counts, blood sugar, kidney and liver function, iron levels, vitamin levels, and thyroid function when indicated.
Learn more → Laboratory TestingStep 8
Upper Endoscopy (EGD)
Many patients undergo an upper endoscopy before bariatric surgery to evaluate the esophagus and stomach for acid reflux, hiatal hernia, gastritis, ulcers, Barrett's esophagus, or H. pylori infection.
Learn more → Upper Endoscopy (EGD)Step 9
Insurance Authorization
Once your workup has been completed and all required documentation has been received, your healthcare team submits your information to your insurance company for review. Insurance approval typically takes at least two weeks.
Learn more → Insurance Approval ChecklistStep 10
Surgery Day
After your evaluation is complete and surgery has been approved, your procedure will be scheduled. You'll review medication instructions, when to stop eating and drinking, preoperative diet, arrival time, and recovery expectations.
Learn more → Surgery DayHow Long Does the Bariatric Workup Take?
For many patients, the complete process takes approximately three months. The timeline depends on insurance requirements, nutrition visits, scheduling of medical evaluations, laboratory testing, endoscopy findings, and medical clearance.
Frequently Asked Questions
Why does bariatric surgery require so many tests?
Can I complete multiple evaluations at the same time?
Will every patient need every test?
What happens if a problem is found?
Already Completed Your Bariatric Surgery Workup?
If you have already completed part of your bariatric surgery evaluation at another practice, you may not need to repeat all of your testing. Depending on when the studies were performed and whether they remain current, many items may be accepted or only require updating.