The patient will undergo a thorough medical evaluation, and the surgeon will also review the patient's medical history and medications to identify any potential risks or complications.

The patient will be required to follow a special preoperative diet to decrease the risk of complications during the surgery. This typically involves a high-protein, low-carbohydrate diet.

In addition, patients will need to stop smoking and avoid alcohol and certain medications that may increase the risk of bleeding or other complications during surgery.

Patients may also be required to lose a certain amount of weight before the surgery to reduce the risk of complications and improve surgical outcomes

After the surgery, patients will be monitored closely in the hospital for any signs of complications. They will also receive pain management medication and instructions on how to care for the surgical incisions.

Patients will start with a clear liquid diet and slowly progress to a pureed and soft food diet over the following weeks. Patients are provided detailed dietary guidelines and instructions on how to manage portion sizes and nutrient intake.

Patients will also need to follow a regular exercise program to help promote healing, improve mobility, and support weight loss.

The most common risks and complications of gastric bypass surgery include infection, bleeding, blood clots, dumping syndrome, nutritional deficiencie and stomal stenosis.

It's important to be aware of the possible risks and discuss them with your surgeon before deciding to undergo the surgery. Proper post-operative care and follow-up can help manage and reduce the risk of these complications.