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The nurse is caring for a patient who has been experiencing severe diarrhea and can now resume solid foods. The nurse educates the patient about appropriate food choices. Which food choice indicates that the nurse's teaching has been successful?
- A. Whole-grain rice
- B. Wheat toast
- C. Applesauce
- D. Grapes
Correct Answer: C
Rationale: The correct answer is C: Applesauce. Applesauce is a low-fiber, easily digestible food that is gentle on the digestive system, making it an appropriate choice for someone recovering from severe diarrhea. It helps to bind stool and prevent further irritation. Whole-grain rice (choice A) and wheat toast (choice B) are high-fiber foods that may worsen diarrhea. Grapes (choice D) are high in natural sugars and can also aggravate diarrhea. In summary, the nurse's teaching is successful when the patient chooses applesauce because it is gentle on the digestive system and helps in recovery from diarrhea.
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What is the primary function of the small intestine in the digestive system?
- A. Absorption of nutrients
- B. Mechanical digestion of food
- C. Production of digestive enzymes
- D. Storage of bile
Correct Answer: A
Rationale: The primary function of the small intestine is the absorption of nutrients. Step 1: Digestive enzymes break down food in the small intestine. Step 2: Villi and microvilli in the intestine absorb nutrients like glucose and amino acids. Step 3: Nutrients are then transported to the bloodstream for distribution to cells. Thus, choice A is correct. Choices B and C are incorrect because mechanical digestion primarily occurs in the stomach, and digestive enzymes are produced by other organs like the pancreas. Choice D is incorrect as the small intestine does not store bile; it is produced by the liver and stored in the gallbladder.
You're caring for Beth who underwent a Billroth II procedure (surgical removal of the pylorus and duodenum) for treatment of a peptic ulcer. Which findings suggest that the patient is developing dumping syndrome, a complication associated with this procedure?
- A. Flushed, dry skin
- B. Headache and bradycardia.
- C. Dizziness and sweating.
- D. Dyspnea and chest pain.
Correct Answer: C
Rationale: Rationale: Dumping syndrome is a common complication post-Billroth II procedure due to rapid emptying of gastric contents into the small intestine. Choice C (dizziness and sweating) align with early dumping syndrome symptoms like vasomotor symptoms and hypoglycemia. Flushed, dry skin (A) is not typical, headache and bradycardia (B) are more indicative of vagal reaction, and dyspnea and chest pain (D) are not usually associated with dumping syndrome.
The function of the migrating motor
- A. is to:
- B. Empty non-digestable material from stomach and small intestine during fasting
- C. Initiate mass movements in the large intestine
- D. Increase intestinal peristalsis in response to overfeeding
Correct Answer: B
Rationale: The migrating motor complex (MMC) functions to clear non-digestible material from the stomach and small intestine during fasting periods. Step 1: During fasting, MMC promotes gastrointestinal motility to prevent bacterial overgrowth. Step 2: MMC consists of 3 phases - quiescent, irregular contractions, and intense contractions - aiding in sweeping undigested materials. Step 3: This process helps maintain gut health and prevents issues like bacterial overgrowth or malabsorption. Summary: Choices A, C, and D are incorrect as they do not accurately describe the specific function of the migrating motor complex during fasting.
The nurse is teaching a patient with hypertension about lifestyle modifications. Which statement by the patient indicates that further teaching is needed?
- A. "I will reduce my intake of processed foods and sodium."
- B. "I will engage in regular physical activity, such as walking."
- C. "I will limit my alcohol intake to no more than two drinks per day."
- D. "I can stop taking my blood pressure medication when I feel better."
Correct Answer: D
Rationale: The correct answer is D because stopping blood pressure medication without medical guidance can be dangerous and worsen hypertension. A is correct as reducing sodium intake helps lower blood pressure. B is correct as physical activity is beneficial. C is incorrect, as limiting alcohol intake is also important in managing hypertension.
Which of these is involved in the chemical digestion of protein?
- A. pancreatic amylase
- B. trypsin
- C. sucrase
- D. pancreatic nuclease
Correct Answer: B
Rationale: The correct answer is B: trypsin. Trypsin is an enzyme produced by the pancreas that specifically breaks down proteins into smaller peptides. It works in the small intestine to continue the process of protein digestion. Pancreatic amylase (A) breaks down carbohydrates, sucrase (C) breaks down sucrose, and pancreatic nuclease (D) breaks down nucleic acids, not proteins. Therefore, trypsin is the only enzyme involved in the chemical digestion of protein among the choices provided.