ATI RN
ATI Nutrition Practice A
1. What is the digestive action of bile?
- A. It breaks down carbohydrates
- B. It breaks down proteins
- C. It breaks down lipids
- D. It aids in fat digestion
Correct answer: D
Rationale: Bile, which is produced by the liver and stored in the gallbladder, aids in the digestion of fats. It does this by emulsifying the fats, which makes them easier for the digestive enzymes, such as lipase, to break down. While choices A, B, and C could be seen as partially correct since fats are a type of lipid and the process of breaking down fats could be seen as breaking down lipids, the most accurate answer is D, as the primary function of bile is to aid in fat digestion, not the digestion of all types of lipids or the digestion of proteins or carbohydrates.
2. A nurse is planning care for a client who has ascites secondary to liver disease. Which of the following interventions should the nurse include in the plan of care?
- A. Reduce complex carbohydrates to 30% of total calories.
- B. Restrict protein intake to less than 0.8 g/kg/day.
- C. Decrease daily caloric intake by 20%.
- D. Limit sodium to 2000 mg or less per day.
Correct answer: D
Rationale: The correct answer is to limit sodium to 2000 mg or less per day. Ascites, which is the abnormal accumulation of fluid in the abdominal cavity, is commonly associated with liver disease. Limiting sodium intake helps manage fluid retention by reducing the fluid accumulation in the abdomen. Choices A, B, and C are incorrect because reducing complex carbohydrates, restricting protein intake, or decreasing caloric intake are not the primary interventions for managing ascites in liver disease.
3. Which of the following is reflected in an ECG due to hypokalemia?
- A. Tall T waves and Pathologic Q wave
- B. Widening QRS Complex and U wave
- C. None of the above
- D. Both A and B
Correct answer: B
Rationale: Hypokalemia, a condition characterized by low levels of potassium in the blood, is reflected in an ECG by a widening QRS Complex and a U wave. This is because potassium plays a key role in the electrical activity of the heart, and its deficiency can lead to abnormalities in the heart's rhythm as represented by these specific changes on the ECG. Choice A is incorrect as tall T waves and pathologic Q waves are more commonly associated with hyperkalemia or myocardial infarction, respectively, rather than hypokalemia. Choices C and D are also incorrect as they do not accurately reflect the ECG changes caused by hypokalemia.
4. What is the term for a state of disequilibrium wherein a person cannot readily solve a problem or situation using their usual coping mechanisms?
- A. Crisis
- B. Mental health
- C. Mental illness
- D. Stress
Correct answer: A
Rationale: In psychological terms, a 'Crisis' refers to a state of disequilibrium wherein a person cannot readily solve a problem or situation even by using his usual coping mechanisms. This is different from 'Mental Illness' (Choice C) which is a more general term for a wide range of mental health conditions that affect mood, thinking and behavior. 'Mental Health' (Choice B) is a state of well-being in which an individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and is able to make a contribution to his or her community. Finally, 'Stress' (Choice D) is a state of mental or emotional strain or tension resulting from adverse or demanding circumstances, but it does not necessarily disrupt equilibrium to the extent that usual coping mechanisms are ineffective, unlike 'Crisis'.
5. Cariogenic foods and beverages, which are fermentable carbohydrates that can be metabolized by oral bacteria, reduce salivary pH to what critical level?
- A. 5
- B. 5.5
- C. 6
- D. 6.5
Correct answer: B
Rationale: Cariogenic foods and beverages lower the pH level in the mouth to below 5.5. This is a critical threshold, as it is the point at which enamel begins to demineralize, increasing the risk of dental caries. Therefore, options 'A', 'C', and 'D' are incorrect. Although a pH level of 5, as suggested by option 'A', would indeed lead to demineralization, it's not the threshold value. The pH levels suggested by options 'C' and 'D' (6 and 6.5, respectively) are higher than the critical value of 5.5, which means they would not initiate enamel demineralization and the subsequent risk of dental caries.
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