WorksheetsVitamins Overview & Classifications
Total questions: 46
Worksheet time: 23mins
Recall: Which statement best defines vitamins based on the overview?
Inorganic compounds required in large amounts for energy production
Organic substances needed in small amounts to promote growth and maintain health
Macronutrients synthesized by human cells for structural support
Hormones that can be stored indefinitely without dietary intake
Recall: According to the overview, what is the primary source by which humans obtain most vitamins?
Endogenous synthesis by human cells
Sunlight exposure for all vitamins
Dietary intake of foods and beverages
Conversion from carbohydrates during digestion
Skill/Concept: Which consequence most directly results from sustained vitamin deficiency as noted in the material?
Enhanced metabolic rate
Disease development
Temporary dehydration
Permanent immunity
Recall: Which vitamin is an exception to the statement that human cells cannot produce vitamins?
Vitamin A
Vitamin C
Vitamin D
Vitamin K
Skill/Concept: Choose the property that distinguishes water-soluble vitamins from fat-soluble vitamins in terms of body handling.
They are stored extensively in liver and adipose tissue
They require fat for absorption and are retained long-term
They are absorbed with water, not stored, and excess is excreted in urine
They are synthesized by the GI tract and accumulate in muscle
Recall: Which list correctly represents the fat-soluble vitamins?
B complex and C
K, A, D, E (KADE)
A, C, E, B12
D, C, K, B6
Strategic Thinking: A patient avoids dietary fat but takes high doses of vitamins A and D. Based on absorption characteristics, what risk or outcome is most likely?
Reduced absorption of A and D due to lack of fat, despite high intake
Immediate urinary excretion of A and D because they are water-soluble
No effect, because fat-soluble vitamins do not require fat for absorption
Enhanced absorption and rapid storage of A and D in muscle tissue
Strategic Thinking: Compare long-term risks of excess intake. Which statement aligns with the classification properties provided?
Excess water-soluble vitamins accumulate in adipose tissue, increasing toxicity risk
Fat-soluble vitamins pose toxicity risk when taken in excess because they are stored
Both classes are excreted rapidly, so toxicity is unlikely
Water-soluble vitamins must be consumed daily due to storage in the liver
Which statement best describes minerals as presented: they are inorganic nutrients needed in small amounts and make up approximately 4% of body weight.
Organic compounds required in large amounts; ~40% of body weight
Inorganic substances needed in small amounts; ~4% of body weight
Organic vitamins synthesized endogenously; ~0.4% of body weight
Inorganic substances required only during growth; ~14% of body weight
According to the notes, which is a correct distinction between macrominerals and microminerals?
Macrominerals are trace elements; microminerals are needed in gram quantities
Macrominerals are major minerals; microminerals are trace minerals
Macrominerals are vitamins; microminerals are coenzymes
Macrominerals are synthesized by the body; microminerals must be obtained from supplements
Which source is identified for obtaining minerals under normal conditions?
Endogenous synthesis via sunlight
Parenteral nutrition only
Normal diet intake
Exclusive supplementation during illness
Which factor is listed as a potential cause of mineral deficiency in the notes?
Excessive exercise alone
High-protein diets
Gastrointestinal issues
High altitude residence
Identify the correct pairing for a Vitamin D form and its primary source as stated: D2 (ergocalciferol) is from fortified foods and plants; D3 (cholecalciferol) is from skin synthesis via sunlight and animal products.
D2—from animal products; D3—from plants
D2—from fortified foods and plants; D3—from skin synthesis via sunlight and animal products
D2—from endogenous synthesis; D3—from fortified breakfast cereals only
D2—from fish oils exclusively; D3—from mushrooms
Which condition is specifically listed as treated with Vitamin D in the notes?
Hypercalcemia
Osteoporosis
Scurvy
Pernicious anemia
A patient presents with bone pain, kidney stones, fatigue, weight loss, and dysrhythmias after taking very high doses of a fat-soluble vitamin. Based on the notes, which vitamin is most likely involved?
Vitamin C
Vitamin D
Vitamin K
Vitamin B12
Which statement aligns with the toxicity consideration for minerals mentioned?
Mineral excess is harmless due to renal excretion
Excess mineral intake can be toxic
Mineral toxicity occurs only with genetic disorders
Minerals are non-toxic because they are inorganic
Which statement best identifies a form of Vitamin K and its source?
K1 synthesized exclusively by gut flora
K2 primarily found in green leafy vegetables and dairy
K1 present in green leafy vegetables, tomatoes, cheese, egg yolk, and liver
K2 abundant in citrus fruits like oranges and lemons
Vitamin K is physiologically required for which primary process?
Collagen cross-linking in connective tissue
Blood clotting factor synthesis
Thyroid hormone production
Neurotransmitter synthesis in the CNS
Given that body stores of Vitamin K are small, deficiency can develop over what typical timeframe?
Within 1–2 days
Within 1–2 weeks
Within 1–2 months
Within 6–12 months
A clinician aims to prevent bleeding in newborns immediately postpartum. Which intervention aligns with the noted use?
Administer Vitamin B12 intranasally
Administer Vitamin K to the newborn
Provide high-dose vitamin C to the mother
Delay prophylaxis until 6 weeks
Which safety warning is associated with Vitamin K administration?
Oral route causes severe hypoglycemia; IV preferred
IV route may cause dyspnea, hypotension, shock, and cardiac arrest; IM preferred
Intranasal route increases intracranial pressure; SQ preferred
IM route causes anaphylaxis; IV preferred
Vitamin B12 (cyanocobalamin) belongs to which therapeutic class?
Antihypertensive drug
Drug for anemias
Anticoagulant
Antidiabetic agent
Which statement best describes the mechanism and indications of Vitamin B12 listed?
Enhances platelet aggregation to treat thrombocytopenia
Treats B12 deficiency and megaloblastic anemia
Inhibits folate recycling to manage hemolytic anemia
Stimulates erythropoietin to correct iron-deficiency anemia
Which administration guidance for Vitamin B12 is correct?
Only intravenous administration is recommended to avoid first-pass metabolism
PO, IM, SQ, and intranasal routes are acceptable; avoid mixing with fruit juice due to ascorbic acid reducing stability
Topical patches are preferred to improve absorption; mix with orange juice to enhance stability
PO route is contraindicated; only intranasal delivery is stable in acidic beverages
Which therapeutic class best describes iron (ferrous sulfate) as used in clinical practice?
Antianemia drug
Anticoagulant
Antipyretic
Antihypertensive
What is the primary mechanism of action of iron (ferrous sulfate) in treating patients?
Prevents or reverses iron-deficiency anemia
Stimulates erythropoietin production
Enhances folate metabolism
Blocks heme breakdown
A patient is prescribed oral ferrous sulfate. Which administration instruction is most appropriate?
Do not crush; avoid taking within 1 hour of bedtime
Crush tablets for faster absorption; take at bedtime
Take only with antacids; administer 3 hours after meals
Chew tablets and take with dairy products to reduce GI upset
Which injection technique should be used for intramuscular administration of iron?
Z-track technique
Standard subcutaneous technique
Intravenous push without dilution
Air-lock technique
Which adverse effect profile is most consistent with iron therapy?
Gastrointestinal upset with constipation and dark stools
Severe hypoglycemia and pale stools
Bronchospasm with wheezing and clay-colored stools
Urticaria with light-colored urine
Which timing strategy optimizes iron absorption while minimizing interactions?
Take 1 hour before or 2 hours after meals; avoid antacids, PPIs, and calcium
Take immediately after a large meal; combine with calcium for absorption
Take only with milk; schedule doses right before bedtime
Take with antacids to protect the stomach; no meal timing needed
What is the recommended treatment for iron overdose?
Deferoxamine
Naloxone
Flumazenil
Protamine sulfate
Which factor increases absorption of oral iron?
Vitamin C co-administration
Concurrent use of proton pump inhibitors
Taking with calcium-rich foods
Using antacids before dosing
Which patient positioning strategy is specifically recommended to reduce the risk of aspiration during enteral feeding?
Supine with the head flat to maintain airway patency
Trendelenburg position to enhance gastric emptying
Head of bed elevated to at least 30 degrees to minimize reflux
Prone position to improve diaphragmatic excursion
A patient receiving enteral nutrition begins coughing and shows signs of possible aspiration. What is the most appropriate immediate action regarding positioning based on standard aspiration prevention guidance?
Lower the head of bed to reduce airway irritation
Raise the head of bed to at least 30 degrees to decrease aspiration risk
Turn the patient to the prone position to clear secretions
Place the patient in Trendelenburg to facilitate drainage
In routine enteral feeding care, what is the minimum head-of-bed elevation threshold commonly used to help prevent aspiration?
10 degrees
20 degrees
30 degrees
45 degrees
Human body systems work together to break down food into nutrients, absorb nutrients, and transport those nutrients through out the body. This process is called...
(a)
A diet lacking in ___________ leads to the development of a disease known as scurvy.
Vitamin A
Vitamin B
Vitamin C
Vitamin D
Which do you want the most of in your diet?
Protein
Sugar
Trans Fat
Saturated Fat
Substances in food that provide nourishment essential for growth and the maintenance of life are called nutrients. What are the 6 nutrients?
Carbohydrates, Meats, Minerals, Water, Protein, and Dairy
Fruits, Milk, Vitamins, Water, Pork, and Vitamins
Carbohydrates, Fats, Water, Protein, Minerals and Vitamins
Carbohydrates, Fats, Minerals, Cheese, Protein, and Vegetables
Eggs are rich source of
Vitamin
Carbohydrate
Protein
Water
