ATI RN
Gastrointestinal Diseases NCLEX Review Questions Questions
Question 1 of 5
Which enzyme is responsible for breaking down proteins in the stomach?
Correct Answer: D
Rationale: Pepsin is the correct answer as it is the enzyme specifically produced by gastric chief cells in the stomach to break down proteins into peptides. It works optimally in the acidic environment of the stomach. Amylase (choice A) breaks down carbohydrates, protease (choice B) refers to a general term for enzymes that break down proteins, and lipase (choice C) breaks down fats, making them incorrect for this question.
Question 2 of 5
What should the nurse plan to teach about to a patient with Crohn's disease who has megaloblastic anemia?
Correct Answer: D
Rationale: The correct answer is D: Cobalamin (B ) supplements. Patients with Crohn's disease often have malabsorption issues leading to megaloblastic anemia due to vitamin B12 deficiency. Cobalamin supplements are essential for treating such anemia. Iron dextran infusions (A) and oral ferrous sulfate tablets (B) are used to treat iron deficiency anemia, not megaloblastic anemia. Routine blood transfusions (C) do not address the underlying cause of megaloblastic anemia in Crohn's disease.
Question 3 of 5
After several days of antibiotic therapy for pneumonia, an older hospitalized patient develops watery diarrheWhich action should the nurse take first?
Correct Answer: D
Rationale: The correct answer is D, placing the patient on contact precautions. This is important because the patient has developed watery diarrhea after antibiotic therapy, which could indicate a Clostridium difficile infection. Placing the patient on contact precautions helps prevent the spread of this highly contagious infection to other patients and healthcare workers. It is the first priority to ensure the safety of others in the healthcare setting. A: Notifying the health care provider can be done after placing the patient on contact precautions. B: Obtaining a stool specimen for analysis is important but should be done after initiating contact precautions. C: Teaching the patient about hand washing is important for infection control but is not the first priority when dealing with a potential infectious disease outbreak.
Question 4 of 5
The alkaline tide occurs when _____ is excreted into the urine.
Correct Answer: C
Rationale: The correct answer is C: bicarbonate ions. During the alkaline tide, the stomach secretes hydrochloric acid (HCl) to aid digestion, which leads to an increase in bicarbonate ions (HCO3-) in the blood to maintain pH balance. These excess bicarbonate ions are then excreted into the urine, resulting in an alkaline pH. Choice A (HCl) is incorrect because HCl is not excreted into the urine during the alkaline tide. Choice B (H+) is incorrect as it does not directly relate to the process of the alkaline tide. Choice D (phosphate ions) is incorrect as they are not the primary ions excreted to produce an alkaline urine during the alkaline tide.
Question 5 of 5
The _____ duct directly receives the fluids from the gallbladder.
Correct Answer: A
Rationale: The correct answer is A: cystic duct. The cystic duct directly receives the fluids from the gallbladder and connects it to the common bile duct. The cystic duct is responsible for carrying bile from the gallbladder to the digestive system. Choices B, C, and D are incorrect because the common bile duct carries a mixture of bile from the liver and gallbladder, the hepatic duct connects the liver to the common bile duct, and the common hepatic duct connects the liver to the gallbladder, respectively. Therefore, the cystic duct is the only duct directly receiving fluids from the gallbladder.