NURS 225 Exam 1 V3 | NURS 225 Nutrition
Proctored Exam | Actual Q&A with
Rationale (NURS225 Exam 1) | West Coast
University
1. Which of the following standards defines the average daily nutrient intake level that is
sufficient to meet the requirements of nearly all healthy individuals in a particular life stage
and gender group?
A. Estimated Average Requirement (EAR)
B. Recommended Dietary Allowance (RDA)
C. Adequate Intake (AI)
D. Tolerable Upper Intake Level (UL)
Answer: B
Rationale: The Recommended Dietary Allowance (RDA) is calculated to meet the needs of
97% to 98% of the healthy population. It is derived from the Estimated Average
Requirement and serves as a goal for individual nutritional intake. This metric ensures that
the vast majority of people avoid deficiencies in a specific nutrient.
2. A nurse is educating a client about energy-yielding nutrients. How many kilocalories per
gram are provided by dietary lipids?
A. 4 kcal/g
,B. 9 kcal/g
C. 7 kcal/g
D. 11 kcal/g
Answer: B
Rationale: Lipids are the most energy-dense macronutrient, providing 9 kilocalories for
every gram consumed. This is significantly higher than carbohydrates and proteins, which
both provide 4 kcal/g. Understanding energy density is crucial for nurses helping patients
manage weight and caloric intake.
3. Which organ is primarily responsible for the production of bile, an essential fluid for lipid
emulsification?
A. Liver
B. Pancreas
C. Gallbladder
D. Small Intestine
Answer: A
Rationale: The liver is the site of bile synthesis using cholesterol as a precursor. Although
the gallbladder stores and concentrates bile, it does not produce it. Bile is critical for the
mechanical breakdown of fats into smaller droplets to increase the surface area for lipase
enzymes.
, 4. The nurse identifies that a patient with a severe burn injury is in a catabolic state. This
patient is most likely experiencing which of the following?
A. Negative nitrogen balance
B. Positive nitrogen balance
C. Nitrogen equilibrium
D. Fluid volume excess
Answer: A
Rationale: Negative nitrogen balance occurs when nitrogen excretion exceeds nitrogen
intake, indicating that body tissues are being broken down. This state is common during
physical trauma, starvation, or severe illness where the body consumes its own protein
stores for energy and repair. The nurse must focus on high-protein dietary interventions to
promote wound healing and restore balance.
5. What is the primary function of carbohydrates in the human body?
A. Building muscle tissue
B. Insulating organs
C. Regulating fluid balance
D. Providing a preferred source of energy
Answer: D
Proctored Exam | Actual Q&A with
Rationale (NURS225 Exam 1) | West Coast
University
1. Which of the following standards defines the average daily nutrient intake level that is
sufficient to meet the requirements of nearly all healthy individuals in a particular life stage
and gender group?
A. Estimated Average Requirement (EAR)
B. Recommended Dietary Allowance (RDA)
C. Adequate Intake (AI)
D. Tolerable Upper Intake Level (UL)
Answer: B
Rationale: The Recommended Dietary Allowance (RDA) is calculated to meet the needs of
97% to 98% of the healthy population. It is derived from the Estimated Average
Requirement and serves as a goal for individual nutritional intake. This metric ensures that
the vast majority of people avoid deficiencies in a specific nutrient.
2. A nurse is educating a client about energy-yielding nutrients. How many kilocalories per
gram are provided by dietary lipids?
A. 4 kcal/g
,B. 9 kcal/g
C. 7 kcal/g
D. 11 kcal/g
Answer: B
Rationale: Lipids are the most energy-dense macronutrient, providing 9 kilocalories for
every gram consumed. This is significantly higher than carbohydrates and proteins, which
both provide 4 kcal/g. Understanding energy density is crucial for nurses helping patients
manage weight and caloric intake.
3. Which organ is primarily responsible for the production of bile, an essential fluid for lipid
emulsification?
A. Liver
B. Pancreas
C. Gallbladder
D. Small Intestine
Answer: A
Rationale: The liver is the site of bile synthesis using cholesterol as a precursor. Although
the gallbladder stores and concentrates bile, it does not produce it. Bile is critical for the
mechanical breakdown of fats into smaller droplets to increase the surface area for lipase
enzymes.
, 4. The nurse identifies that a patient with a severe burn injury is in a catabolic state. This
patient is most likely experiencing which of the following?
A. Negative nitrogen balance
B. Positive nitrogen balance
C. Nitrogen equilibrium
D. Fluid volume excess
Answer: A
Rationale: Negative nitrogen balance occurs when nitrogen excretion exceeds nitrogen
intake, indicating that body tissues are being broken down. This state is common during
physical trauma, starvation, or severe illness where the body consumes its own protein
stores for energy and repair. The nurse must focus on high-protein dietary interventions to
promote wound healing and restore balance.
5. What is the primary function of carbohydrates in the human body?
A. Building muscle tissue
B. Insulating organs
C. Regulating fluid balance
D. Providing a preferred source of energy
Answer: D
