Weight Loss Surgery Weight Loss Surgery 2 — Questions and Answers
Question 1: Which vitamin deficiency is MOST commonly seen after Roux-en-Y gastric bypass due to reduced absorption in the bypassed small intestine?
- Vitamin C
- Vitamin B12 (Correct answer)
- Vitamin K
- Vitamin E
Correct answer: Vitamin B12
Intrinsic factor and the terminal ileum are bypassed, severely impairing B12 absorption after gastric bypass.
Question 2: What is 'dumping syndrome' in the context of bariatric surgery?
- Regurgitation of undigested food into the esophagus
- Rapid emptying of stomach contents into the small intestine causing nausea and diarrhea (Correct answer)
- Slow gastric emptying leading to bloating
- Bile reflux into the stomach pouch
Correct answer: Rapid emptying of stomach contents into the small intestine causing nausea and diarrhea
Dumping syndrome occurs when food moves too quickly from the stomach pouch into the small intestine, causing gastrointestinal distress.
Question 3: Which bariatric procedure is purely restrictive with NO malabsorptive component?
- Roux-en-Y gastric bypass
- Biliopancreatic diversion
- Adjustable gastric band (Correct answer)
- Sleeve gastrectomy
Correct answer: Adjustable gastric band
The adjustable gastric band only restricts food intake volume and does not alter intestinal absorption.
Question 4: A patient two years post-sleeve gastrectomy develops severe gastroesophageal reflux. What is the most likely recommended surgical conversion?
- Adjustable gastric band placement
- Roux-en-Y gastric bypass (Correct answer)
- Duodenal switch
- Revisional sleeve tightening
Correct answer: Roux-en-Y gastric bypass
Converting a sleeve to Roux-en-Y gastric bypass effectively eliminates acid reflux by diverting bile and stomach contents away from the esophagus.
Question 5: What is the recommended minimum duration of pre-operative medically supervised diet before most insurance companies approve bariatric surgery?
- 1 month
- 3 months
- 6 months (Correct answer)
- 12 months
Correct answer: 6 months
Most US insurers require documentation of a 6-month physician-supervised weight loss program before approving bariatric surgery.
Question 6: Which hormone, produced mainly in the gastric fundus, is significantly reduced after sleeve gastrectomy and contributes to decreased hunger?
- Leptin
- Insulin
- Ghrelin (Correct answer)
- Glucagon
Correct answer: Ghrelin
The fundus, where ghrelin is primarily produced, is removed during sleeve gastrectomy, substantially lowering hunger hormone levels.
Question 7: What does the term 'pouch reset' refer to in the bariatric surgery community?
- Surgical revision to shrink an enlarged gastric pouch
- A structured diet to restore restriction after weight regain (Correct answer)
- Endoscopic tightening of the stomach opening
- A liquid diet required after any bariatric complication
Correct answer: A structured diet to restore restriction after weight regain
A 'pouch reset' is a non-surgical structured dietary program intended to re-establish restriction and reduce food intake after weight regain.
Weight Loss Surgery Weight Loss Surgery 2
Which vitamin deficiency is MOST commonly seen after Roux-en-Y gastric bypass due to reduced absorption in the bypassed small intestine?