Weight Loss Surgery Ultimate 5 — Questions and Answers
Question 1: Which hormone, primarily produced in the gastric fundus, is dramatically reduced after sleeve gastrectomy contributing to decreased hunger?
- Leptin
- Ghrelin (Correct answer)
- Insulin
- Glucagon
Correct answer: Ghrelin
Ghrelin, the hunger-stimulating hormone, is significantly reduced after sleeve gastrectomy because the fundus — its primary production site — is surgically removed.
Question 2: A patient 3 years post-gastric bypass regains 30% of their lost weight. What is the MOST common reason for long-term weight regain?
- Surgical staple line failure
- Return to pre-surgery eating habits and behaviors (Correct answer)
- Thyroid malfunction caused by surgery
- Intestinal adaptation increasing absorption
Correct answer: Return to pre-surgery eating habits and behaviors
Behavioral relapse to poor dietary habits is the most common cause of weight regain, as no surgery permanently prevents overeating in the long term.
Question 3: Which of the following best describes the biliopancreatic diversion with duodenal switch (BPD/DS)?
- A purely restrictive procedure with no intestinal bypass
- Combination of sleeve gastrectomy and significant small bowel bypass (Correct answer)
- Placement of an adjustable band around the stomach
- Endoscopic suturing of the stomach without incisions
Correct answer: Combination of sleeve gastrectomy and significant small bowel bypass
BPD/DS combines a sleeve gastrectomy with a long-limb intestinal bypass, creating both restriction and profound malabsorption for maximum weight loss.
Question 4: What is the purpose of the 'liver-shrinking diet' required before bariatric surgery?
- To reduce blood sugar levels for anesthesia safety
- To shrink an enlarged fatty liver for safer surgical access (Correct answer)
- To cleanse the colon before the procedure
- To reduce the risk of blood clots during surgery
Correct answer: To shrink an enlarged fatty liver for safer surgical access
A high-protein, low-carbohydrate pre-op diet reduces glycogen and fat stored in the liver, making it smaller and easier for surgeons to retract safely during laparoscopic surgery.
Question 5: Which supplementation is specifically critical for gastric bypass patients to prevent Wernicke's encephalopathy?
- Vitamin D3
- Thiamine (Vitamin B1) (Correct answer)
- Folate
- Vitamin B6
Correct answer: Thiamine (Vitamin B1)
Thiamine deficiency can cause Wernicke's encephalopathy, a serious neurological emergency; it is particularly at risk post-bypass due to reduced absorption and frequent vomiting.
Question 6: What term describes the surgical revision performed when the gastric band is removed and converted to another procedure like sleeve or bypass?
- Primary bariatric surgery
- Revisional bariatric surgery (Correct answer)
- Bariatric reversal
- Staged bariatric procedure
Correct answer: Revisional bariatric surgery
Converting from one bariatric procedure to another is called revisional bariatric surgery, often performed due to inadequate weight loss, complications, or band-related problems.
Question 7: Which type of weight loss surgery is performed entirely endoscopically with no external incisions?
- Sleeve gastrectomy
- Intragastric balloon placement (Correct answer)
- Roux-en-Y gastric bypass
- Adjustable gastric band
Correct answer: Intragastric balloon placement
Intragastric balloon placement is performed endoscopically by inserting a saline-filled balloon into the stomach to reduce capacity, with no abdominal incisions required.
Weight Loss Surgery Ultimate 5
Which hormone, primarily produced in the gastric fundus, is dramatically reduced after sleeve gastrectomy contributing to decreased hunger?