ATI RN
Gastrointestinal Test Questions Questions
Question 1 of 5
Which of these is a hormone name?
Correct Answer: C
Rationale: The correct answer is C: cholecystokinin. It is a hormone released by the small intestine in response to the presence of fat and protein in the digestive tract. Cholecystokinin plays a role in the digestion and absorption of nutrients. Trypsin, ribonuclease, and chymotrypsinogen are enzymes involved in digestion, not hormones. Hormones are chemical messengers produced by glands and released into the bloodstream to regulate various physiological processes in the body.
Question 2 of 5
Which part of the digestive system is primarily responsible for the absorption of water?
Correct Answer: B
Rationale: The large intestine is primarily responsible for the absorption of water in the digestive system. It reabsorbs water and electrolytes from the indigestible food residue, forming feces. The small intestine is more involved in nutrient absorption. The stomach mainly digests food, while the duodenum is the initial segment of the small intestine where most digestion occurs. The large intestine's main role in water absorption makes it the correct answer.
Question 3 of 5
A client who is scheduled for a barium swallow asks the nurse why a laxative is necessary following the procedure. Which of the following responses should the nurse make?
Correct Answer: B
Rationale: The correct answer is B: The laxative helps eliminate the barium. After a barium swallow, the client needs to expel the barium from their system to prevent barium toxicity. The laxative helps to move the barium through the digestive system and facilitate its elimination. Choices A, C, and D are incorrect because preventing magnesium absorption, facility protocol, and changing the color of barium are not reasons for the necessity of a laxative after a barium swallow.
Question 4 of 5
A nurse is assisting a group of clients in an outpatient clinic. For which of the following clients should the nurse anticipate scheduling a colonoscopy?
Correct Answer: C
Rationale: The correct answer is C because having a first-degree relative who died of colon cancer puts the client at an increased risk for developing colon cancer. This indicates the need for a colonoscopy for early detection and preventive measures. A: A 56-year-old who had a colonoscopy 6 years ago is not a priority for immediate scheduling. B: A 34-year-old with new onset constipation may require further assessment but not necessarily a colonoscopy. D: A 51-year-old attending an annual physical exam without additional risk factors does not warrant immediate colonoscopy.
Question 5 of 5
Peptic ulcer disease may be caused by which of the following?
Correct Answer: A
Rationale: The correct answer is A: Helicobacter pylori. H. pylori is a common bacterium known to cause peptic ulcer disease by damaging the protective lining of the stomach and small intestine. This bacterium is a major risk factor for developing peptic ulcers. Clostridium difficile (B) is associated with antibiotic-associated diarrhea, not peptic ulcers. Candida albicans (C) is a fungal infection that can cause oral thrush or vaginal yeast infections, not peptic ulcers. Staphylococcus aureus (D) can cause skin infections, food poisoning, or pneumonia, but it is not a common cause of peptic ulcers.