ATI RN
NCLEX Questions Gastrointestinal System Questions
Question 1 of 5
Where does the majority of nutrient absorption occur in the digestive system?
Correct Answer: C
Rationale: The majority of nutrient absorption occurs in the small intestine. Here's the rationale: 1. The small intestine is where most digestion and absorption of nutrients occur due to its large surface area. 2. Villi and microvilli in the small intestine increase the absorption surface for nutrients like carbohydrates, proteins, and fats. 3. Specific enzymes and bile are secreted in the small intestine to aid in the breakdown and absorption of nutrients. 4. The large intestine primarily absorbs water and electrolytes, not nutrients. In summary, the mouth is mainly for mechanical digestion, the stomach primarily digests food, and the large intestine absorbs water, making the small intestine the correct choice for nutrient absorption.
Question 2 of 5
The gastrointestinal tract (GI tract) includes all of the following, EXCEPT:
Correct Answer: B
Rationale: The correct answer is B: liver. The liver is not part of the gastrointestinal tract. The GI tract consists of the esophagus, stomach, and small intestine, where digestion and absorption of nutrients occur. The liver is an accessory organ that aids in digestion by producing bile but is not part of the tract itself. The liver is involved in detoxification, storage of nutrients, and production of important proteins, but it does not play a direct role in the digestion process. Therefore, the liver is the correct answer.
Question 3 of 5
Which adult should the nurse plan to teach about risks associated with obesity?
Correct Answer: B
Rationale: The correct answer is B because a waist circumference of 42 inches in men signifies abdominal obesity, which is a significant risk factor for health issues related to obesity. A high waist circumference indicates excess visceral fat, which is linked to heart disease and other health problems. Choice A is incorrect because a BMI of 18 kg/m2 indicates underweight, not obesity. Choice C is incorrect because a BMI of 24 kg/m2 falls within the healthy weight range, not indicating obesity. Choice D is incorrect because a waist circumference of 34 inches in women is considered normal, not indicative of obesity.
Question 4 of 5
Which action will the nurse include in the plan of care for a patient who is being admitted with Clostridium difficile?
Correct Answer: D
Rationale: The correct answer is D: Place the patient in a private room on contact isolation. This is important because Clostridium difficile is highly contagious, spread through contact with infected feces. Isolating the patient helps prevent the spread. A: Teaching about food storage is irrelevant to managing C. difficile. B: Administering medications is not mentioned in the question. C: Ordering a diet without dairy is not the priority; isolation is key to prevent transmission.
Question 5 of 5
A patient is receiving continuous enteral nutrition through a small-bore silicone feeding tube. What should the nurse plan for when this patient has a computed tomography (CT) scan ordered?
Correct Answer: B
Rationale: Rationale: - Correct Answer (B): Shutting off the feeding 30-60 mins before the CT scan reduces the risk of aspiration or vomiting during the procedure, minimizing potential complications. - Incorrect Answer (A): Rescheduling the scan is not necessary if feeding is temporarily stopped before the procedure. - Incorrect Answer (C): Connecting the feeding tube to continuous suction is unnecessary and may lead to dehydration or electrolyte imbalances. - Incorrect Answer (D): Sending a suction catheter with the patient is not a standard practice for CT scans; aspiration risk can be minimized by stopping the feeding temporarily.