ATI RN
Gastrointestinal NCLEX Questions Questions
Question 1 of 5
Proteins are digested or broken down by the _____ in the stomach.
Correct Answer: B
Rationale: The correct answer is B: pepsin. Pepsin is an enzyme secreted by the stomach that breaks down proteins into peptides. Initially, pepsin is produced in an inactive form called pepsinogen, which is activated by the acidic environment in the stomach. Pepsin works optimally at a low pH, which is maintained by hydrochloric acid (choice C) in the stomach. Lipase (choice D) is an enzyme that breaks down fats, not proteins. So, the correct enzyme responsible for digesting proteins in the stomach is pepsin.
Question 2 of 5
Which of the following is not readily absorbed in the small intestine?
Correct Answer: D
Rationale: The correct answer is D, Mg++. Magnesium is not readily absorbed in the small intestine due to its reliance on active transport mechanisms and limited absorption sites. Na+, Cl-, and K+ are all readily absorbed in the small intestine through passive or active transport processes. Na+ is mainly absorbed through active transport, Cl- through passive diffusion, and K+ through both passive and active transport mechanisms. Therefore, Mg++ stands out as it requires specific carriers for absorption, making it less readily absorbed compared to the other ions.
Question 3 of 5
Secretin and cholecystokinin are secreted in
Correct Answer: C
Rationale: The correct answer is C, duodenum. Secretin and cholecystokinin are hormones secreted by the duodenal mucosa in response to the presence of acidic chyme from the stomach entering the duodenum. Secretin stimulates the pancreas to release bicarbonate to neutralize the acidic chyme, while cholecystokinin stimulates the gallbladder to release bile to aid in digestion. Choices A (pyloric region), B (Ileum), and D (Oesophagus) are incorrect because secretin and cholecystokinin are not secreted in these regions of the gastrointestinal tract.
Question 4 of 5
A nurse is admitting a client who was prescribed antibiotic therapy and now has a Clostridium difficile infection. Which of the following actions should the nurse take?
Correct Answer: A
Rationale: The correct answer is A: Disinfect equipment in the client's room daily. This is important for preventing the spread of Clostridium difficile, a highly contagious bacterium causing severe diarrhea. Disinfecting equipment helps eliminate the bacteria from the environment, reducing the risk of transmission to other individuals. Summary of other choices: B: Placing the client in a protective environment is unnecessary and not recommended for Clostridium difficile infection. C: While using alcohol hand sanitizer is important for hand hygiene, disinfecting equipment is more crucial in this case. D: Having the client wear a mask is not necessary for preventing the transmission of Clostridium difficile.
Question 5 of 5
A nurse is assessing a client who has an obstruction of the common bile duct resulting from chronic cholecystitis. Which of the following findings should the nurse expect?
Correct Answer: A
Rationale: The correct answer is A: Fatty stools. Common bile duct obstruction leads to inadequate bile flow into the intestines, resulting in malabsorption of fats. This causes fatty stools due to the presence of undigested fats. Straw-colored urine (B) is a normal finding. Tenderness in the left upper abdomen (C) is more indicative of splenic issues. Ecchymosis of the extremities (D) is unrelated to common bile duct obstruction.