Test Bank Scientific American: Nutrition for a Changing World Chapter 11 Water-Soluble Vitamins Multiple-Choice Questions

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1. A patient with a poor diet shows mental disturbances, muscle weakness, and impaired cardiac function, suggesting a possible A. thiamin deficiency. B. niacin deficiency. C. vitamin B6 deficiency... . D. vitamin B12 deficiency. E. folate deficiency. Answer: A Type: Analysis Difficulty: Medium Concept: vitamin deficiency signs and symptoms Keywords: thiamin, beriberi 2. Wernicke–Korsakoff syndrome results from A. thiamin deficiency due to alcoholism. B. niacin deficiency due to low protein intake. C. vitamin B6 due to low consumption of organ meats. D. riboflavin deficiency due to low dairy intake. E. vitamin C due to low fruit and vegetable consumption. Answer: A Type: Analysis Difficulty: Medium Learning Objective: Describe the possible causes of a vitamin deficiency (Infographic 11.3) Keywords: thiamin, Wernicke–Korsakoff syndrome 3. A patient with a poor diet showing symptoms of diarrhea, confusion, and discoloration of the skin suggests a possible A. thiamin deficiency. B. niacin deficiency. C. vitamin B6 deficiency. D. vitamin B12 deficiency. E. vitamin C deficiency. Answer: B Type: Analysis Difficulty: Medium Concept: vitamin deficiency signs and symptoms Keywords: niacin, pellegra 4. A patient showing poor wound healing, bruising, joint pain, and bleeding gums may have a deficiency of A. thiamin. B. niacin. C. vitamin B6. D. vitamin B12. E. vitamin C. Answer: E Type: Analysis Difficulty: Medium Concept: vitamin deficiency signs and symptoms Keywords: scurvy, vitamin C, ascorbic acid 5. Scurvy is a disease resulting from A. thiamin deficiency due to alcoholism. B. niacin deficiency due to low protein intake. C. vitamin B6 deficiency due to low consumption of organ meats. D. riboflavin deficiency due to low dairy intake. E. vitamin C deficiency due to low fruit and vegetable consumption. Answer: E Type: Analysis Difficulty: Medium Concept: vitamin deficiency signs and symptoms Keywords: scurvy, vitamin C, ascorbic acid 6. A patient’s blood sample shows large immature red blood cells. This may suggest a deficiency in A. thiamin and niacin. B. niacin and vitamin B6. C. vitamin B6 and B12. D. vitamin B6 and folate. E. vitamin B12 and folate. Answer: E Type: Analysis Difficulty: Medium Learning Objective: Identify the vitamin deficiencies that cause megaloblastic anemia and explain how this anemia occurs (Infographic 11.10) Keywords: megaloblastic anemia, folate, vitamin B12 7. Which list contains only vitamins that can have toxic effects if consumed in excess? A. thiamin, riboflavin, vitamin C B. vitamin B12, folate, biotin C. thiamin, riboflavin, niacin, vitamin B6 D. niacin, vitamin B6, vitamin C E. biotin, vitamin B12, pantothenic acid Answer: D Type: Analysis Difficulty: Medium Concept: vitamin toxicity Keywords: UL, Tolerable Upper Intake Level, toxicity 8. Excess of which water-soluble vitamin can cause a long-term toxic effect of numbness due to nerve damage? A. thiamin B. vitamin C C. pantothenic acid D. vitamin B6 E. choline Answer: D Type: Application Difficulty: Medium Concept: vitamin toxicity Keywords: UL, Tolerable Upper Intake Level, vitamin B6 9. Excess of which water-soluble vitamin can cause a long-term toxic effect of liver damage? A. thiamin B. vitamin C C. niacin D. vitamin B6 choline Answer: C Type: Application Difficulty: Medium Concept: vitamin toxicity Keywords: UL, Tolerable Upper Intake Level, toxicity, niacin 10. Excess of which vitamin can cause toxic effects of excess perspiration and fishy body odor? A. thiamin B. vitamin C C. niacin D. vitamin B6 E. choline Answer: E Type: Application Difficulty: Medium [Show More]

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