WGU D440 HESI NUTRITION
OBJECTIVE ASSESSMENT EXAM
(2026) ACTUAL QUESTIONS &
LATEST MOCK PRACTICE SET
169 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
WGU D440 HESI NUTRITION OBJECTIVE ASSESSMENT EXAM (2026) ACTUAL QUESTIONS & STUDY
GUIDE | GUARANTEE PASS. It contains 169 carefully selected questions that reflect the most current exam
content and testing strategies. Each question is accompanied by a correct answer and a detailed rationale that
explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 169 Questions
Foundations - Application - WGU D440 HESI Nutrition Objective Assessment 2026 Actual & Study Guide
Guarantee PASS Nutrition Science AND Clinical Dietetics Undergraduate YEAR 3 / Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Nutrition 1-43 Disease, Dietary, Appropriate, Likely, Chronic Kidney
Disease 44-86 Nutrition, Appropriate, Enteral, Receiving, Formula
Appropriate 87-129 Nutrition, Disease, Chronic, Dietary, Kidney
Dietary 130-169 Nutrition, Disease, Appropriate, Chronic, Likely
TOTAL 169 All questions include answers and detailed rationales
,Section A - Nutrition
Q1.
In a patient with chronic kidney disease not yet on dialysis, which dietary modification is
most critical to slow disease progression?
A. Restricting potassium to prevent B. Limiting phosphorus intake to manage
hyperkalemia hyperphosphatemia
C. Restricting dietary protein to reduce D. Increasing fluid intake to promote toxin
glomerular hyperfiltration excretion
Correct: C - Restricting dietary protein to reduce glomerular hyperfiltration
Rationale:In non-dialysis CKD, moderate protein restriction (0.6-0.8 g/kg/day) reduces
intraglomerular pressure and slows progression. Potassium and phosphorus restrictions are
important but become critical in later stages; fluid restriction is needed in oliguric patients.
Q2.
Which metabolic adaptation primarily explains the initial rapid weight loss observed with a
very low-carbohydrate ketogenic diet?
A. Increased protein catabolism leading to B. Enhanced lipolysis and oxidation of free
muscle wasting fatty acids
C. Depletion of glycogen stores and D. Suppression of basal metabolic rate
associated water loss
Correct: C - Depletion of glycogen stores and associated water loss
Rationale:Glycogen binds 3-4 grams of water per gram; as glycogen is depleted, water is
excreted, causing rapid initial weight loss. Lipolysis increases, but fat oxidation alone cannot
account for the acute drop; muscle wasting and BMR suppression are not primary.
Q3.
A patient on long-term warfarin therapy presents with an INR of 5.2 and a diet history
revealing daily consumption of a green smoothie containing kale, spinach, and broccoli.
Which dietary component is the primary contributor to this interaction?
A. High vitamin C enhancing warfarin B. High vitamin K antagonizing warfarin's
absorption action
C. High folate leading to altered drug D. High dietary fiber reducing warfarin
metabolism absorption
Correct: B - High vitamin K antagonizing warfarin's action
Page 3
, Section A - Nutrition
Rationale: Warfarin inhibits vitamin K epoxide reductase; high dietary vitamin K from green
leafy vegetables reverses this effect, lowering INR. The patient's INR is high, but the question
asks for the primary dietary component causing interaction; vitamin K is the key. Note: if the
patient suddenly increased intake, INR could drop, but here the high INR is likely due to other
factors; however, the component is vitamin K.
Q4.
In a patient with short bowel syndrome following massive small bowel resection, which
nutrient deficiency is most likely to develop due to loss of the terminal ileum?
A. Iron deficiency B. Vitamin B12 deficiency
C. Zinc deficiency D. Vitamin C deficiency
Correct: B - Vitamin B12 deficiency
Rationale:The terminal ileum is the primary site for vitamin B12 absorption via intrinsic factor.
Resection leads to B12 deficiency. Iron is absorbed in the duodenum, zinc in the jejunum, and
vitamin C is absorbed throughout; these are less affected.
Q5.
Which of the following is the most appropriate initial nutrition intervention for a patient
with acute pancreatitis?
A. Clear liquid diet to rest the pancreas B. Immediate initiation of total parenteral
nutrition
C. Early enteral nutrition within 24-48 hours D. NPO with intravenous fluids for 5-7 days
Correct: C - Early enteral nutrition within 24-48 hours
Rationale:Current guidelines recommend early enteral nutrition (within 24-48 hours) in acute
pancreatitis to maintain gut integrity and reduce infectious complications. NPO and TPN are
reserved for specific cases; clear liquids are not adequate.
Q6.
A patient with phenylketonuria (PKU) is planning a pregnancy. Which nutritional strategy
is essential to prevent fetal damage?
A. Increase phenylalanine intake to support B. Maintain blood phenylalanine levels
fetal growth below 6 mg/dL before conception and
throughout pregnancy
C. Supplement with tyrosine only during the D. Use a low-protein diet without medical
third trimester formula
Correct: B - Maintain blood phenylalanine levels below 6 mg/dL before conception and
Page 4
OBJECTIVE ASSESSMENT EXAM
(2026) ACTUAL QUESTIONS &
LATEST MOCK PRACTICE SET
169 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
WGU D440 HESI NUTRITION OBJECTIVE ASSESSMENT EXAM (2026) ACTUAL QUESTIONS & STUDY
GUIDE | GUARANTEE PASS. It contains 169 carefully selected questions that reflect the most current exam
content and testing strategies. Each question is accompanied by a correct answer and a detailed rationale that
explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 169 Questions
Foundations - Application - WGU D440 HESI Nutrition Objective Assessment 2026 Actual & Study Guide
Guarantee PASS Nutrition Science AND Clinical Dietetics Undergraduate YEAR 3 / Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Nutrition 1-43 Disease, Dietary, Appropriate, Likely, Chronic Kidney
Disease 44-86 Nutrition, Appropriate, Enteral, Receiving, Formula
Appropriate 87-129 Nutrition, Disease, Chronic, Dietary, Kidney
Dietary 130-169 Nutrition, Disease, Appropriate, Chronic, Likely
TOTAL 169 All questions include answers and detailed rationales
,Section A - Nutrition
Q1.
In a patient with chronic kidney disease not yet on dialysis, which dietary modification is
most critical to slow disease progression?
A. Restricting potassium to prevent B. Limiting phosphorus intake to manage
hyperkalemia hyperphosphatemia
C. Restricting dietary protein to reduce D. Increasing fluid intake to promote toxin
glomerular hyperfiltration excretion
Correct: C - Restricting dietary protein to reduce glomerular hyperfiltration
Rationale:In non-dialysis CKD, moderate protein restriction (0.6-0.8 g/kg/day) reduces
intraglomerular pressure and slows progression. Potassium and phosphorus restrictions are
important but become critical in later stages; fluid restriction is needed in oliguric patients.
Q2.
Which metabolic adaptation primarily explains the initial rapid weight loss observed with a
very low-carbohydrate ketogenic diet?
A. Increased protein catabolism leading to B. Enhanced lipolysis and oxidation of free
muscle wasting fatty acids
C. Depletion of glycogen stores and D. Suppression of basal metabolic rate
associated water loss
Correct: C - Depletion of glycogen stores and associated water loss
Rationale:Glycogen binds 3-4 grams of water per gram; as glycogen is depleted, water is
excreted, causing rapid initial weight loss. Lipolysis increases, but fat oxidation alone cannot
account for the acute drop; muscle wasting and BMR suppression are not primary.
Q3.
A patient on long-term warfarin therapy presents with an INR of 5.2 and a diet history
revealing daily consumption of a green smoothie containing kale, spinach, and broccoli.
Which dietary component is the primary contributor to this interaction?
A. High vitamin C enhancing warfarin B. High vitamin K antagonizing warfarin's
absorption action
C. High folate leading to altered drug D. High dietary fiber reducing warfarin
metabolism absorption
Correct: B - High vitamin K antagonizing warfarin's action
Page 3
, Section A - Nutrition
Rationale: Warfarin inhibits vitamin K epoxide reductase; high dietary vitamin K from green
leafy vegetables reverses this effect, lowering INR. The patient's INR is high, but the question
asks for the primary dietary component causing interaction; vitamin K is the key. Note: if the
patient suddenly increased intake, INR could drop, but here the high INR is likely due to other
factors; however, the component is vitamin K.
Q4.
In a patient with short bowel syndrome following massive small bowel resection, which
nutrient deficiency is most likely to develop due to loss of the terminal ileum?
A. Iron deficiency B. Vitamin B12 deficiency
C. Zinc deficiency D. Vitamin C deficiency
Correct: B - Vitamin B12 deficiency
Rationale:The terminal ileum is the primary site for vitamin B12 absorption via intrinsic factor.
Resection leads to B12 deficiency. Iron is absorbed in the duodenum, zinc in the jejunum, and
vitamin C is absorbed throughout; these are less affected.
Q5.
Which of the following is the most appropriate initial nutrition intervention for a patient
with acute pancreatitis?
A. Clear liquid diet to rest the pancreas B. Immediate initiation of total parenteral
nutrition
C. Early enteral nutrition within 24-48 hours D. NPO with intravenous fluids for 5-7 days
Correct: C - Early enteral nutrition within 24-48 hours
Rationale:Current guidelines recommend early enteral nutrition (within 24-48 hours) in acute
pancreatitis to maintain gut integrity and reduce infectious complications. NPO and TPN are
reserved for specific cases; clear liquids are not adequate.
Q6.
A patient with phenylketonuria (PKU) is planning a pregnancy. Which nutritional strategy
is essential to prevent fetal damage?
A. Increase phenylalanine intake to support B. Maintain blood phenylalanine levels
fetal growth below 6 mg/dL before conception and
throughout pregnancy
C. Supplement with tyrosine only during the D. Use a low-protein diet without medical
third trimester formula
Correct: B - Maintain blood phenylalanine levels below 6 mg/dL before conception and
Page 4
