WGU D440 Health and Wellness Final Exam (2026/2027
Edition) | Complete Review Guide | Practice Questions with
Detailed Explanations
Which carotenoid found in yellow-green foods is specifically associated with the
prevention of age-related macular degeneration correct answer
Zeaxanthin
Which characteristic of vitamin D is accurate correct answer
It is measured in international units
Which system is sensitive to a vitamin D deficiency correct answer
Musculoskeletal
Which amount of vitamin B12 (cobalamin) is recommended as part of a vegan diet
correct answer
2.4 mcg
Which best describes the function of vitamin A correct answer
Maintains skin and the inner mucous membranes
Which toxicity symptoms might occur with an intake of vitamin C (ascorbic acid) greater
than 2000 mg/day correct answer
Gastrointestinal disturbance
In which type of food are phytochemicals found correct answer
-Unrefined
-Processed
-Functional
-Organic
-Whole
-Unrefined
,-Functional
-Whole
Which physiologic function do phytochemicals perform correct answer
-Collagen synthesis
-Antibacterial effects
-Hormonal action
-Coenzyme for energy production
-Interaction with DNA replication
-Antibacterial effects
-Hormonal action
-Interaction with DNA replication
Which role does vitamin K play in the health body correct answer
-Protects cell membranes
-Assists in protein formation
-Synthesizes clotting factors
-Facilitates absorption of calcium
-Promotes healthy skin
-Assists in protein formation
-Synthesizes clotting factors
When taken in excessive amounts for a prolonged period, which vitamin causes
hypercalcemia correct answer
Vitamin D
A deficiency in which mineral can cause symptoms of heart muscle weakness with
possible cardiac arrest correct answer
Potassium
Which is the main function of sodium in the body correct answer
Maintenance of body water balance
Which disease is associated with excessive sodium intake correct answer
Hypertension
,Which mineral is considered a major mineral correct answer
-Iron
-Phosphorus
-Zinc
-Sulfur
-Manganese
-Iron
-Phosphorus
-Sulfur
Which food is rich in molybdenum correct answer
-Whole grains
-Chicken
-Legumes
-String beans
-Leafy vegetables
-Coffee
-Whole grains
-Legumes
-Leafy vegetables
Which food source is an exceptionally good source of selenium correct answer
Brazil nuts
Which deficiency in which trace mineral can cause anemia correct answer
Iron
What is the potassium-sodium ratio recommended by the dietary approaches to stop
hypertension (DASH) diet correct answer
Equal intake of potassium and sodium
Which is a function of chloride correct answer
Maintaining acid-base balance
Which can cause chloride toxicity correct answer
, Severe dehydration
Which is the primary cause of chloride deficiency correct answer
Vomiting
The nurse is teaching a pregnant patient in food general health about the importance of
iron intake. How many milligrams of iron does the nurse recommend the patient
consume daily correct answer
27
Inadequate absorption resulting in rickets is caused by which of the following
deficiences correct answer
Vitamin D
The nurse is caring for a patient with selenium deficiency. For which disease is the
patient at risk correct answer
Kashin-Bek disease
Which is a function of potassium correct answer
Stimulates beta cells to release insulin
Which food is rich in selenium correct answer
-Liver
-Meat
-Fish
-Eggs
-Whole wheat bread
-Seafood
-Meat
-Fish
-Eggs
-Whole wheat bread
Edition) | Complete Review Guide | Practice Questions with
Detailed Explanations
Which carotenoid found in yellow-green foods is specifically associated with the
prevention of age-related macular degeneration correct answer
Zeaxanthin
Which characteristic of vitamin D is accurate correct answer
It is measured in international units
Which system is sensitive to a vitamin D deficiency correct answer
Musculoskeletal
Which amount of vitamin B12 (cobalamin) is recommended as part of a vegan diet
correct answer
2.4 mcg
Which best describes the function of vitamin A correct answer
Maintains skin and the inner mucous membranes
Which toxicity symptoms might occur with an intake of vitamin C (ascorbic acid) greater
than 2000 mg/day correct answer
Gastrointestinal disturbance
In which type of food are phytochemicals found correct answer
-Unrefined
-Processed
-Functional
-Organic
-Whole
-Unrefined
,-Functional
-Whole
Which physiologic function do phytochemicals perform correct answer
-Collagen synthesis
-Antibacterial effects
-Hormonal action
-Coenzyme for energy production
-Interaction with DNA replication
-Antibacterial effects
-Hormonal action
-Interaction with DNA replication
Which role does vitamin K play in the health body correct answer
-Protects cell membranes
-Assists in protein formation
-Synthesizes clotting factors
-Facilitates absorption of calcium
-Promotes healthy skin
-Assists in protein formation
-Synthesizes clotting factors
When taken in excessive amounts for a prolonged period, which vitamin causes
hypercalcemia correct answer
Vitamin D
A deficiency in which mineral can cause symptoms of heart muscle weakness with
possible cardiac arrest correct answer
Potassium
Which is the main function of sodium in the body correct answer
Maintenance of body water balance
Which disease is associated with excessive sodium intake correct answer
Hypertension
,Which mineral is considered a major mineral correct answer
-Iron
-Phosphorus
-Zinc
-Sulfur
-Manganese
-Iron
-Phosphorus
-Sulfur
Which food is rich in molybdenum correct answer
-Whole grains
-Chicken
-Legumes
-String beans
-Leafy vegetables
-Coffee
-Whole grains
-Legumes
-Leafy vegetables
Which food source is an exceptionally good source of selenium correct answer
Brazil nuts
Which deficiency in which trace mineral can cause anemia correct answer
Iron
What is the potassium-sodium ratio recommended by the dietary approaches to stop
hypertension (DASH) diet correct answer
Equal intake of potassium and sodium
Which is a function of chloride correct answer
Maintaining acid-base balance
Which can cause chloride toxicity correct answer
, Severe dehydration
Which is the primary cause of chloride deficiency correct answer
Vomiting
The nurse is teaching a pregnant patient in food general health about the importance of
iron intake. How many milligrams of iron does the nurse recommend the patient
consume daily correct answer
27
Inadequate absorption resulting in rickets is caused by which of the following
deficiences correct answer
Vitamin D
The nurse is caring for a patient with selenium deficiency. For which disease is the
patient at risk correct answer
Kashin-Bek disease
Which is a function of potassium correct answer
Stimulates beta cells to release insulin
Which food is rich in selenium correct answer
-Liver
-Meat
-Fish
-Eggs
-Whole wheat bread
-Seafood
-Meat
-Fish
-Eggs
-Whole wheat bread
