ATI RN
Nutrition ATI Proctored Exam
1. What stimulates bile secretion from the liver to the small intestine?
- A. Pepsin
- B. Salivary Amylase
- C. CCK
- D. Secretin
Correct answer: C
Rationale: Cholecystokinin (CCK) is the hormone that stimulates the release of bile from the gallbladder into the small intestine, aiding in fat digestion. Pepsin is an enzyme in the stomach that breaks down proteins into smaller peptides, not involved in bile secretion. Salivary Amylase is an enzyme in saliva that initiates starch digestion in the mouth, not related to bile secretion. Secretin is a hormone that regulates the release of gastric juice in the stomach and triggers the pancreas to neutralize stomach acid in the small intestine, but it does not stimulate bile secretion.
2. In cleaning the stoma, the nurse would use which of the following cleaning mediums?
- A. Hydrogen Peroxide, water and mild soap
- B. Providone Iodine, water and mild soap
- C. Alcohol, water and mild soap
- D. Mild soap and water
Correct answer: D
Rationale: Understanding the underlying pathology and therapeutic techniques ensures that nursing care is not only reactive but also preventative, reducing the risk of complications.
3. _____ neutralizes stomach acid in the small intestine:
- A. saliva
- B. gastric mucus
- C. bicarbonate ions
- D. enzymes
Correct answer: C
Rationale: The correct answer is C: bicarbonate ions. Bicarbonate ions, secreted by the pancreas, neutralize the acidic chyme entering the small intestine from the stomach, creating a more suitable environment for digestive enzymes. Saliva (choice A) helps in the initial breakdown of food in the mouth, not in neutralizing stomach acid. Gastric mucus (choice B) protects the stomach lining from the acidic environment but does not neutralize the acid in the small intestine. Enzymes (choice D) facilitate chemical reactions in digestion but do not neutralize stomach acid.
4. Nonnutritive sweeteners are not metabolized by microorganisms and do not promote dental caries. Products made with a nonnutritive sweetener can be used as frequently as 8 to 10 times per day.
- A. Both statements are true
- B. Both statements are false
- C. The first statement is true; the second is false
- D. The first statement is false; the second is true
Correct answer: C
Rationale: The first statement is true; nonnutritive sweeteners do not promote caries. However, the second statement is false because products with nonnutritive sweeteners should still be consumed in moderation.
5. Which vitamin is crucial for collagen synthesis and wound healing?
- A. Vitamin C
- B. Vitamin D
- C. Vitamin E
- D. Vitamin K
Correct answer: A
Rationale: The correct answer is Vitamin C. Vitamin C is crucial for collagen synthesis, a process important for wound healing. Collagen is a key protein that helps in wound repair and tissue strength. Vitamin D is primarily known for its role in calcium absorption and bone health, not directly related to collagen synthesis. Vitamin E is an antioxidant that helps protect cells from damage but is not directly involved in collagen synthesis. Vitamin K is essential for blood clotting but does not play a major role in collagen synthesis for wound healing.
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