ATI RN
Gastrointestinal NCLEX RN Questions Questions
Question 1 of 5
Intrinsic factor is required for the intestinal absorption of _ in the upper ileum:
Correct Answer: C
Rationale: Intrinsic factor is required for the absorption of Vitamin B12 in the upper ileum. It binds to Vitamin B12, allowing it to be absorbed. Vitamin D (Choice A) is absorbed in the small intestine but does not require intrinsic factor. Amino acids (Choice B) are absorbed in the small intestine but not dependent on intrinsic factor. Choice D is incorrect as intrinsic factor is specifically necessary for the absorption of Vitamin B12.
Question 2 of 5
An older patient reports chronic constipation. To promote bowel evacuation, when should the nurse suggest that the patient attempt defecation?
Correct Answer: D
Rationale: The correct answer is D: Right after awakening in the morning. This is because the gastrocolic reflex is most active in the morning, leading to increased bowel motility. This reflex is triggered by the presence of food in the stomach and helps facilitate bowel evacuation. Attempting defecation in the morning takes advantage of this natural reflex, making it easier for the patient to have a bowel movement. A: In the middle of the night - Incorrect. Bowel motility is typically lowest during nighttime hours, making it less likely for the patient to have a successful bowel movement. B: In the afternoon - Incorrect. Bowel motility tends to decrease throughout the day, making it less optimal for promoting bowel evacuation. C: After eating breakfast - Incorrect. While eating can stimulate bowel movement, the gastrocolic reflex is most active in the morning, making this a suboptimal time for defecation.
Question 3 of 5
A patient in the emergency department has just been diagnosed with peritonitis from a ruptured diverticulum. Which prescribed intervention will the nurse implement first?
Correct Answer: B
Rationale: The correct answer is B: Insert a urinary catheter to drain. In this scenario, the patient has peritonitis from a ruptured diverticulum, which can lead to sepsis. The priority intervention is to insert a urinary catheter to monitor urine output, as decreased urine output can indicate worsening sepsis. This intervention helps assess the patient's fluid status and kidney function, guiding further management. Sending the patient for a CT scan (choice A) can be important for diagnosis but is not the immediate priority. Administering antibiotics like metronidazole (choice D) is crucial, but assessing urine output takes precedence. Choice C is incomplete.
Question 4 of 5
The alimentary tube is around _____ meters long.
Correct Answer: C
Rationale: The correct answer is C: 6. The alimentary tube, also known as the digestive tract, is approximately 6 meters long in adults. This length allows for the proper digestion and absorption of nutrients. Choice A (2) is too short for the length of the digestive tract. Choice B (4) is closer but still shorter than the actual length. Choice D (9) is too long and does not accurately represent the length of the alimentary tube. Therefore, choice C is the most accurate and logical option based on the average length of the human digestive tract.
Question 5 of 5
Which of the following triggers the formation of the others?
Correct Answer: B
Rationale: The correct answer is B: enterokinase. Enterokinase is an enzyme that activates trypsinogen into trypsin in the small intestine, which then triggers the activation of other pancreatic zymogens like chymotrypsinogen and procarboxypeptidase. Trypsin itself does not activate other enzymes. Carboxypeptidase is not involved in the activation of other enzymes. Chymotrypsin is activated by trypsin, not the other way around. Thus, enterokinase is the enzyme that initiates the cascade of enzyme activation in the small intestine.