CBN Pharmacology & Medication Management 2

Question 1

Proton pump inhibitors (PPIs) are commonly prescribed after bariatric surgery primarily to:

Accepted Answer

Prevent marginal ulcers at the gastrojejunal anastomosis

Answer

Stimulate appetite in the early post-operative phase

Answer

Enhance absorption of fat-soluble vitamins

Answer

Treat acid reflux caused by post-surgical overeating

Question 2

A post-gastric bypass patient taking levothyroxine develops new hypothyroid symptoms. The bariatric nurse should suspect:

Accepted Answer

Impaired levothyroxine absorption due to reduced gastric acid and altered GI anatomy

Answer

The patient is taking an excessive levothyroxine dose

Answer

A drug interaction between levothyroxine and post-surgical vitamins

Answer

Spontaneous remission of hypothyroidism post-surgery

Question 3

Which pain management option is most appropriate for a post-bariatric patient requiring non-opioid analgesia?

Accepted Answer

Acetaminophen per protocol

Answer

Ibuprofen 400 mg orally as needed

Answer

Naproxen sodium 220 mg twice daily

Answer

Aspirin 325 mg daily

Question 4

After Roux-en-Y gastric bypass, alcohol metabolism is altered in which important way?

Accepted Answer

Peak blood alcohol concentration is higher and reached more quickly

Answer

Blood alcohol levels rise more slowly due to larger gastric volume

Answer

Patients develop increased alcohol tolerance after surgery

Answer

Alcohol is significantly less absorbed due to the smaller stomach pouch

Question 5

What is the minimum recommended daily dose of elemental iron for most bariatric surgical patients to prevent iron deficiency?

Accepted Answer

45–60 mg/day of elemental iron

Answer

18 mg/day (standard adult RDA)

Answer

10 mg/day in divided doses

Answer

200 mg/day of elemental iron

Question 6

Bypass of the duodenum and proximal jejunum in RYGB surgery places patients at highest risk for deficiency of which mineral?

Accepted Answer

Iron

Answer

Potassium

Answer

Sodium

Answer

Phosphorus

Question 7

A bariatric patient on warfarin therapy requires closer INR monitoring post-surgery because:

Accepted Answer

Altered fat and vitamin K absorption can cause unpredictable INR fluctuations

Answer

Warfarin is absolutely contraindicated in all post-bariatric patients

Answer

The smaller stomach concentrates warfarin to dangerous levels

Answer

Post-surgical liquid diet eliminates all dietary clotting factors