PRACTICE EXAM AND A NEW UPDATED EXAM STUDY
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QUESTIONS AND CORRECT ANSWERS WITH RATIONALES
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Contents
WGU D440 NUTRITION FINAL PRACTICE EXAM .......................................................................... 1
WGU D440 EXAM STUDY GUIDE ..................................................................................................... 30
WGU D440 NUTRITION FINAL PRACTICE EXAM
The nurse is caring for a patient with a selenium deficiency. For which
disease is the patient at risk?
A. Bale disease
B. Crowns' disease
C. CREST disease
D. Kashin-Bek disease - D. Kashin-Bek disease
Rationale: Kashin-Bek disease is caused by selenium deficiency and can
lead to heart failure and cardiomyopathy
A deficiency in which mineral can cause symptoms of heart muscle
weakness with possible cardiac arrest?
A. Calcium
,B. Sodium
C. Potassium
D. Magnesium - A. Potassium
Which food is rich in molybdenum? Select all that apply.
A. Whole grains
B. Chicken
C. Legumes
D. String beans
E. Leafy vegetables
F. Coffee - A. Whole grains
C. Legumes
E. Leafy vegetables
Rationale: Most animal products such as chicken, vegetables such as
string beans, fruit, and foods containing caffeine are poor dietary sources
of molybdenum
Which food source is an exceptionally good source of selenium?
A. Brazil nuts
B. Seafood
C. Organ meats
D. Whole grains - A. Brazil nuts
,A deficiency in which trace mineral can cause anemia?
A. Iodine
B. Iron
C. Zinc
D. Selenium - B. Iron
What is the potassium-sodium ratio recommended by the dietary
approaches to stop hypertension (DASH) diet?
A. Increased potassium, decreased sodium
B. Decreased potassium, increased sodium
C. Equal intake of potassium and sodium
D. No specific potassium-sodium ratio - C. Equal intake of potassium
and sodium
Rationale: According to the DASH diet an equal intake of potassium and
sodium can help prevent the development of hypertension
What is a function of Chloride?
A. Maintaining acid-base balance
B. Opposing the action of sodium
C. Killing bacteria in food that enters the stomach
D. Activating pepsin enzymes to break down protein - A. Maintaining
acid-base balance
, Rationale: Chloride helps maintain the body's acid base balance
What can cause chloride toxicity?
A. Severe dehydration
B. Prolonged use of supplements
C. A diet high in processed foods
D. Exceeding the recommended upper intake level - A. Severe
dehydration
Rationale: the only known dietary cause of chloride toxicity occurs as a
result of severe dehydration
What is the primary cause of a chloride deficiency?
A. Diarrhea
B. Meknes Disease
C. Low dietary intake
D. Vomiting - D. Vomiting
Rationale: The primary cause of chloride deficiency is excessive loss of
hydrochloric acid through vomiting
The nurse is teaching a pregnancy patient in good general health about
the importance of iron intake. How many mg of iron does the nurse
recommend the patient to consume daily?
A. 9