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What Tests Are Done Before Gastric Bypass Surgery & VSG?


With obesity becoming such a common problem in the U.S., many people are looking for effective solutions such as bariatric surgery. Gastric bypass and sleeve gastrectomy are two weight loss operations that are incredibly common today.

You can regain the look you had in your earlier years with weight loss surgery. Of course, you’ll need to put some work in. The right diet and exercise regimen is crucial for keeping the weight down. But everyone loves to look younger these days.

Bariatric procedures can be performed safely and effectively by qualified surgeons. That being said, you might be wondering what kind of tests you may need to undergo before qualifying for these weight loss operations. Let’s talk about some of the common tests you should plan for.

And if you’re considering weight loss surgery in New York City, reach out to our clinic today., reach out to our clinic today. We offer a variety of bariatric procedures that can help you maintain your ideal figure.

What Tests Are Done Before Bariatric Surgery?

Before you get weight loss surgery, there are some common gastric bypass and gastric sleeve pre-op tests that your surgeon may request or require. So what tests are done before gastric sleeve and other bariatric surgeries?

These tests can include:

Physical Exam

Before your operation, your surgeon will want to examine your overall physical state. These can include BMI, blood pressure, sleep apnea, and more. They may also review your medical history and the medications that you’re currently on.

If you have any kind of allergies or pre-existing conditions, be sure to inform your surgeon of these before going any further. This allows your surgeon to assess your risk and potential benefits of undergoing bariatric surgery.

Blood Tests

In order to reduce complications that could arise during surgery, a blood test will be ordered. Blood tests before bariatric surgery are very common. They’re an important step for determining if you’re qualified for weight loss surgery.

These look at your kidney function, electrolyte levels, and liver function, as well as your blood count. You may be iron deficient, for instance.

Read More : What To Know About Iron Deficiency After Gastric Surgery

This allows the surgeon to suggest diet, lifestyle changes, or supplements before the procedure, if necessary. This will keep your risk level low during and after the procedure.

Barium Test

An upper GI series or barium swallow may be required before you undergo weight loss surgery. This evaluates your upper digestive system, your stomach, your small intestine, and even your esophagus.

It involves drinking barium, which is a chalky liquid, and allows the surgeon to see your digestive system on an X-ray.


An ultrasound can assess the size of your gallbladder and liver, and see if there are any abnormalities that need to be addressed before your procedure. That’s why pre-op testing for gastric bypass and VSG is so crucial.

Get Bariatric Surgery With Confidence

You should love what you see when you look in the mirror every morning. Gastric sleeve in NYC can help you slim down to the figure you’ve always dreamed of.

Health, diabetes, heart disease, and other illnesses can be caused by obesity or excess weight that you’re carrying around. By investing in weight loss surgery, you can help mitigate these risks as you age. Contact us today to learn more about your options.