Care/of Vitamin Quiz
Questions: 16 · 10 minutes
1. A severe deficiency of which vitamin causes scurvy by disrupting normal collagen formation?
Vitamin D
Vitamin K
Vitamin C
Vitamin B12
2. A person takes a high-dose biotin supplement and is scheduled for blood tests. What is the most informed action?
Double the dose so the test detects it accurately
Assume vitamins cannot affect laboratory results
Stop every supplement permanently without guidance
Tell the clinician and laboratory about the supplement before testing
3. Which nutrient is a mineral rather than a vitamin?
Folate
Biotin
Riboflavin
Iron
4. A salad contains carotenoid-rich vegetables. Which addition can help the body absorb these fat-soluble compounds?
A glass of plain water
A spoonful of table sugar
An olive-oil dressing
A serving of fat-free broth
5. Pellagra is classically associated with a severe deficiency of which vitamin?
Vitamin E
Vitamin B12
Vitamin D
Niacin, or vitamin B3
6. Difficulty seeing in dim light is a classic sign associated with deficiency of which vitamin?
Vitamin A
Vitamin C
Vitamin B1
Vitamin K
7. A digestive condition substantially reduces dietary-fat absorption. Which vitamin group may also be absorbed poorly?
A, D, E, and K
B12, folate, biotin, and vitamin C
B1, B2, B3, and B6
Vitamin C and all B vitamins only
8. Which supplement is most likely to accumulate and cause harm when taken in excessive amounts over time because it contains a stored, fat-soluble vitamin?
A standard-dose vitamin C tablet
A high-dose preformed vitamin A supplement
A standard-dose riboflavin tablet
A standard-dose thiamine tablet
9. Vegetables are boiled for a long time and the cooking water is discarded. Which vitamin is especially vulnerable to loss through heat and leaching into the water?
Vitamin A
Vitamin D
Vitamin E
Vitamin C
10. A person planning a pregnancy asks which vitamin is well established as important before conception and during early pregnancy for reducing neural-tube defect risk. What is the answer?
Folate or folic acid
Vitamin E
Niacin
Vitamin B6
11. Someone eats a strict vegan diet with few fortified foods. Which vitamin deserves particular planning because reliable natural sources are mainly animal-derived?
Vitamin E
Vitamin C
Vitamin B12
Vitamin K
12. Which meal is the clearest natural dietary source of vitamin B12?
Lentil soup with tomatoes
Baked salmon with vegetables
Orange slices with berries
Almonds with oatmeal
13. When skin is exposed to suitable sunlight, the body can produce which vitamin?
Vitamin A
Vitamin B6
Vitamin D
Vitamin E
14. Which substance made in the stomach is needed for normal absorption of vitamin B12 later in the digestive tract?
Intrinsic factor
Insulin
Bile pigment
Collagen
15. Which group contains only fat-soluble vitamins?
Vitamins B1, B6, B12, and C
Vitamins A, D, E, and K
Vitamins A, C, D, and B12
Vitamins C, E, K, and folate
16. Someone taking warfarin wants to change how much vitamin-K-rich food they eat. Which approach is most appropriate?
Eliminate every source of vitamin K immediately
Keep intake reasonably consistent and discuss major changes with the prescribing clinician
Take extra vitamin K whenever a warfarin dose is missed
Replace leafy vegetables with a high-dose vitamin K supplement