ATI NUTRITION RETAKE EXAM – ACTUAL EXAM
(REVISED) – LATEST UPDATES All 70 Questions –
Correct Detailed Answers – Pass Guaranteed - A+
Graded
Fueling the Body: Basic Nutrition Principles & Metabolism
Q1: Which macronutrient is the body's primary and most efficient source of energy,
especially for the brain and nervous system?
A. Protein
B. Fat
C. Carbohydrate [CORRECT]
D. Vitamins
Correct Answer: C
Rationale: The best answer is carbohydrate because ATI teaches that carbs break
down directly into glucose, which is the preferred fuel source for both neurological
functioning and daily physical activities.
Q2: A nurse is explaining the importance of complete proteins to a client who follows a
strict vegan diet. The nurse knows teaching has been effective when the client states
they will combine rice and beans to do what?
A. Lower their overall daily caloric intake
B. Provide all nine essential amino acids in one meal [CORRECT]
C. Decrease their intake of saturated fats
D. Increase their absorption of dietary fiber
Correct Answer: B
Rationale: This choice is correct because ATI emphasizes that plant-based proteins
often lack one or more essential amino acids, but pairing complementary proteins, like
grains and legumes, creates a complete protein profile.
Q3: What is the primary function of fat in the human body?
A. To build and repair muscle tissue
B. To regulate fluid balance and blood pressure
C. To provide a concentrated source of stored energy and protect internal organs
[CORRECT]
D. To prevent ketosis from occurring
Correct Answer: C
,Rationale: That aligns with the standard nutritional management of understanding
macronutrients, as adipose tissue serves as a long-term energy reserve and provides
physical cushioning for organs.
Q4: A patient has a wound that is healing poorly. The nurse recommends increasing
their intake of vitamin C. What is the primary role of vitamin C in this situation?
A. It promotes the synthesis of collagen in connective tissue [CORRECT]
B. It enhances the absorption of calcium in the small intestine
C. It prevents the oxidation of low-density lipoproteins
D. It acts as the main carrier for oxygen in the bloodstream
Correct Answer: A
Rationale: The best answer is vitamin C's role in collagen formation, which is absolutely
essential for laying down new connective tissue and closing a wound properly.
Q5: Which of the following foods is the richest dietary source of heme iron, which is the
most easily absorbed form of iron?
A. Spinach
B. Lentils
C. Beef liver [CORRECT]
D. Raisins
Correct Answer: C
Rationale: This matches what we know about nutrient absorption because heme iron
comes exclusively from animal flesh, with organ meats like liver packing the highest
concentration compared to non-heme plant sources.
Q6: A client asks the nurse why they need to consume fat-soluble vitamins. What is the
best response regarding how these vitamins are stored?
A. They dissolve in water and are excreted in the urine daily, requiring constant
replenishment.
B. They are stored in the liver and fatty tissues and do not need to be consumed every
single day. [CORRECT]
C. They bind directly to red blood cells for transport throughout the body.
D. They are broken down by stomach acid and cannot be stored at all.
Correct Answer: B
Rationale: This choice is correct because ATI teaches that vitamins A, D, E, and K
dissolve in lipids, allowing the body to bank them in fat stores, meaning toxicity is a
bigger risk than deficiency for most healthy people.
Q7: Where does the majority of nutrient absorption take place in the gastrointestinal
tract?
A. Stomach
, B. Duodenum and jejunum of the small intestine [CORRECT]
C. Ileum of the small intestine
D. Large intestine
Correct Answer: B
Rationale: That aligns with the standard physiological breakdown of digestion, as the
first two sections of the small intestine have villi and microvilli perfectly designed to pull
the vast majority of nutrients into the bloodstream.
Q8: A patient with severe fat malabsorption is at highest risk for a deficiency of which
vitamin?
A. Vitamin B12
B. Vitamin C
C. Vitamin D [CORRECT]
D. Thiamine
Correct Answer: C
Rationale: The best answer is vitamin D because it requires dietary fat to be properly
absorbed and transported in the body, so any condition that impairs fat absorption will
immediately drain your stores of fat-soluble vitamins.
Q9: What role does bile play in the digestive process?
A. It breaks down proteins into individual amino acids.
B. It emulsifies fats so that enzymes can break them down more efficiently. [CORRECT]
C. It neutralizes the acid chyme coming from the stomach.
D. It absorbs water from the chyme to form solid stool.
Correct Answer: B
Rationale: This matches what we know about nutrient absorption in the GI tract, as bile
acts like a dish soap, physically breaking apart large fat globules into smaller droplets
for lipases to do their job.
Q10: A nurse is calculating a patient's basal energy expenditure (BEE). Which factors
are required to determine this baseline metabolic rate?
A. Age, weight, height, and sex [CORRECT]
B. Daily physical activity level and food preferences
C. Current heart rate and respiratory rate
D. Resting blood pressure and body temperature
Correct Answer: A
Rationale: This choice is correct because ATI teaches that equations like the
Harris-Benedict equation rely strictly on anthropometric measurements and biological
sex to figure out how many calories the body burns at complete rest.
(REVISED) – LATEST UPDATES All 70 Questions –
Correct Detailed Answers – Pass Guaranteed - A+
Graded
Fueling the Body: Basic Nutrition Principles & Metabolism
Q1: Which macronutrient is the body's primary and most efficient source of energy,
especially for the brain and nervous system?
A. Protein
B. Fat
C. Carbohydrate [CORRECT]
D. Vitamins
Correct Answer: C
Rationale: The best answer is carbohydrate because ATI teaches that carbs break
down directly into glucose, which is the preferred fuel source for both neurological
functioning and daily physical activities.
Q2: A nurse is explaining the importance of complete proteins to a client who follows a
strict vegan diet. The nurse knows teaching has been effective when the client states
they will combine rice and beans to do what?
A. Lower their overall daily caloric intake
B. Provide all nine essential amino acids in one meal [CORRECT]
C. Decrease their intake of saturated fats
D. Increase their absorption of dietary fiber
Correct Answer: B
Rationale: This choice is correct because ATI emphasizes that plant-based proteins
often lack one or more essential amino acids, but pairing complementary proteins, like
grains and legumes, creates a complete protein profile.
Q3: What is the primary function of fat in the human body?
A. To build and repair muscle tissue
B. To regulate fluid balance and blood pressure
C. To provide a concentrated source of stored energy and protect internal organs
[CORRECT]
D. To prevent ketosis from occurring
Correct Answer: C
,Rationale: That aligns with the standard nutritional management of understanding
macronutrients, as adipose tissue serves as a long-term energy reserve and provides
physical cushioning for organs.
Q4: A patient has a wound that is healing poorly. The nurse recommends increasing
their intake of vitamin C. What is the primary role of vitamin C in this situation?
A. It promotes the synthesis of collagen in connective tissue [CORRECT]
B. It enhances the absorption of calcium in the small intestine
C. It prevents the oxidation of low-density lipoproteins
D. It acts as the main carrier for oxygen in the bloodstream
Correct Answer: A
Rationale: The best answer is vitamin C's role in collagen formation, which is absolutely
essential for laying down new connective tissue and closing a wound properly.
Q5: Which of the following foods is the richest dietary source of heme iron, which is the
most easily absorbed form of iron?
A. Spinach
B. Lentils
C. Beef liver [CORRECT]
D. Raisins
Correct Answer: C
Rationale: This matches what we know about nutrient absorption because heme iron
comes exclusively from animal flesh, with organ meats like liver packing the highest
concentration compared to non-heme plant sources.
Q6: A client asks the nurse why they need to consume fat-soluble vitamins. What is the
best response regarding how these vitamins are stored?
A. They dissolve in water and are excreted in the urine daily, requiring constant
replenishment.
B. They are stored in the liver and fatty tissues and do not need to be consumed every
single day. [CORRECT]
C. They bind directly to red blood cells for transport throughout the body.
D. They are broken down by stomach acid and cannot be stored at all.
Correct Answer: B
Rationale: This choice is correct because ATI teaches that vitamins A, D, E, and K
dissolve in lipids, allowing the body to bank them in fat stores, meaning toxicity is a
bigger risk than deficiency for most healthy people.
Q7: Where does the majority of nutrient absorption take place in the gastrointestinal
tract?
A. Stomach
, B. Duodenum and jejunum of the small intestine [CORRECT]
C. Ileum of the small intestine
D. Large intestine
Correct Answer: B
Rationale: That aligns with the standard physiological breakdown of digestion, as the
first two sections of the small intestine have villi and microvilli perfectly designed to pull
the vast majority of nutrients into the bloodstream.
Q8: A patient with severe fat malabsorption is at highest risk for a deficiency of which
vitamin?
A. Vitamin B12
B. Vitamin C
C. Vitamin D [CORRECT]
D. Thiamine
Correct Answer: C
Rationale: The best answer is vitamin D because it requires dietary fat to be properly
absorbed and transported in the body, so any condition that impairs fat absorption will
immediately drain your stores of fat-soluble vitamins.
Q9: What role does bile play in the digestive process?
A. It breaks down proteins into individual amino acids.
B. It emulsifies fats so that enzymes can break them down more efficiently. [CORRECT]
C. It neutralizes the acid chyme coming from the stomach.
D. It absorbs water from the chyme to form solid stool.
Correct Answer: B
Rationale: This matches what we know about nutrient absorption in the GI tract, as bile
acts like a dish soap, physically breaking apart large fat globules into smaller droplets
for lipases to do their job.
Q10: A nurse is calculating a patient's basal energy expenditure (BEE). Which factors
are required to determine this baseline metabolic rate?
A. Age, weight, height, and sex [CORRECT]
B. Daily physical activity level and food preferences
C. Current heart rate and respiratory rate
D. Resting blood pressure and body temperature
Correct Answer: A
Rationale: This choice is correct because ATI teaches that equations like the
Harris-Benedict equation rely strictly on anthropometric measurements and biological
sex to figure out how many calories the body burns at complete rest.
