Certified Neuroscience Registered Nurse (CNRN) Practice Exam

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What is the most common type of bariatric surgery that involves the removal of 80% of the stomach?

Banded gastrectomy
Sleeve gastrectomy
Roux-en-Y gastric bypass
Gastric banding

The correct answer is: Sleeve gastrectomy

The most common type of bariatric surgery that involves the removal of 80% of the stomach is sleeve gastrectomy. This procedure entails surgically removing a significant portion of the stomach, resulting in a reduced stomach size that resembles a tubular "sleeve." By restricting the amount of food that can be consumed at one time, sleeve gastrectomy promotes weight loss through both reduced food intake and hormonal changes that impact appetite and metabolism. Additionally, this surgery does not involve rerouting the intestines, as is seen in some other bariatric procedures. The sleeve gastrectomy is also associated with various metabolic benefits, particularly in patients with obesity-related conditions such as type 2 diabetes, further contributing to its popularity. Its effectiveness and relatively straightforward surgical technique make it a common option in bariatric surgery today.