Weight Loss Weight Loss Surgery 1 — Questions and Answers
Question 1: Which type of bariatric surgery is currently the most commonly performed in the United States?
- Roux-en-Y gastric bypass
- Adjustable gastric banding
- Sleeve gastrectomy (Correct answer)
- Biliopancreatic diversion with duodenal switch
Correct answer: Sleeve gastrectomy
Sleeve gastrectomy now accounts for over 60% of all bariatric procedures performed in the US, surpassing gastric bypass in frequency.
Question 2: What is the minimum BMI that qualifies a patient for bariatric surgery without any obesity-related comorbidities?
- 30 or higher
- 35 or higher
- 40 or higher (Correct answer)
- 45 or higher
Correct answer: 40 or higher
NIH guidelines require a BMI of 40 or higher for bariatric surgery candidates who do not have accompanying obesity-related comorbidities.
Question 3: Which vitamin deficiency is most commonly associated with Roux-en-Y gastric bypass surgery?
- Vitamin C
- Vitamin B12 (Correct answer)
- Vitamin K
- Vitamin E
Correct answer: Vitamin B12
Vitamin B12 deficiency is common after gastric bypass because reduced stomach acid and bypassing of the proximal intestine impair B12 absorption.
Question 4: What is 'dumping syndrome' in the context of bariatric surgery?
- The inability to digest dietary fat after surgery
- Rapid gastric emptying causing nausea, sweating, and dizziness after eating (Correct answer)
- Progressive muscle mass loss following weight loss surgery
- Severe constipation occurring in weeks after the procedure
Correct answer: Rapid gastric emptying causing nausea, sweating, and dizziness after eating
Dumping syndrome occurs when food moves too rapidly from the smaller stomach remnant into the small intestine, triggering symptoms such as nausea, flushing, and dizziness.
Question 5: For how long are patients typically required to follow a liquid-only diet immediately following bariatric surgery?
- 2–3 days
- 1–2 weeks (Correct answer)
- 4–6 weeks
- 3 months
Correct answer: 1–2 weeks
Most bariatric programs require a liquid diet for approximately 1–2 weeks post-operatively before gradually advancing to pureed foods to allow the surgical site to heal.
Question 6: Which of the following is NOT a standard requirement before qualifying for bariatric surgery?
- Documented history of failed weight loss attempts
- Psychological evaluation
- Minimum age of 30 years (Correct answer)
- Medical clearance from a physician
Correct answer: Minimum age of 30 years
There is no minimum age requirement of 30 years; bariatric surgery can be performed on qualifying adolescents with appropriate medical and parental consent.
Question 7: What is the typical range of excess body weight loss achieved within two years after sleeve gastrectomy?
- 10–20%
- 25–35%
- 50–70% (Correct answer)
- 85–95%
Correct answer: 50–70%
Sleeve gastrectomy patients typically lose 50–70% of their excess body weight within two years, making it one of the most effective bariatric procedures.
Weight Loss Weight Loss Surgery 1
Which type of bariatric surgery is currently the most commonly performed in the United States?