Medical Nutrition Therapy Comprehensive Exam
MEDICAL NUTRITION THERAPY COMPREHENSIVE EXAM – COMMISSION ON
DIETETIC REGISTRATION / ACADEMY OF NUTRITION AND DIETETICS PREP
NEWEST 2026/2027 ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) WITH DETAILED RATIONALES
|ALREADY GRADED A+||BRAND NEW VERSION!!
Description
This Medical Nutrition Therapy Comprehensive Exam heavily emphasizes Domain 2: Nutrition
Care for Individuals and Groups, which accounts for about 40% of the exam and requires you to
navigate the Nutrition Care Process (NCP) under pressure. You’ll be tested on your ability to
interpret complex lab values, manage drug-nutrient interactions, and calculate precise nutrition
support (EN/PN) for critically ill patients. The exam doesn't just ask for facts; it presents
"application-level" scenarios where you must choose the best intervention for a patient with
multiple comorbidities, such as a diabetic with Stage 4 CKD. Success requires a mastery of
Medical Nutrition Therapy (MNT) across the entire lifecycle, ensuring you can provide safe,
effective care from the NICU to geriatric long-term facilities.
Contents Covered
Chapter 1: Cardiovascular & Renal Disorders ................................................................................. 2
Chapter 2: Critical Care, PN/EN & Respiratory.............................................................................. 10
Chapter 3: Diabetes & Endocrine Disorders ................................................................................. 19
Chapter 4: Gastrointestinal & Hepatic Disorders .......................................................................... 26
Chapter 5: Oncology, Immunocompromised & Anemia ............................................................... 36
Chapter 6: Lifecycle & Metabolic Stress........................................................................................ 44
1|Page
, Medical Nutrition Therapy Comprehensive Exam
Chapter 1: Cardiovascular & Renal Disorders
Focus: Electrolyte management, hypertension, CKD stages, and fluid shifts.
1. A patient with Stage 4 Chronic Kidney Disease (CKD) presents with a serum potassium of
6.2mEq/L. Which of the following foods should the dietitian instruct the patient to avoid
immediately?
a) Canned peaches
b) White bread
c) Swiss chard
d) Blueberries
Correct Answer: c) Swiss chard
Rationale: A potassium level of 6.2mEq/L indicates hyperkalemia. Dark leafy greens like Swiss
chard are extremely high in potassium (>400mg per serving). Peaches, white bread, and
blueberries are considered low-potassium options.
2. A 65-year-old male with Heart Failure (HF) is taking Furosemide (Lasix). Which lab value
should the RDN monitor most closely for drug-nutrient interaction?
a) Serum Sodium
b) Serum Magnesium
c) Serum Potassium
d) Serum Phosphorus
Correct Answer: c) Serum Potassium
Rationale: Furosemide is a loop diuretic that is non-potassium-sparing. It increases the excretion
of potassium, sodium, and magnesium, but hypokalemia is the most common and clinically
significant risk for cardiac patients on this med.
3. When calculating a meal plan for a patient on Peritoneal Dialysis (PD), how does the protein
requirement differ from a patient on Hemodialysis (HD)?
a) PD requires less protein because the treatment is continuous.
2|Page
, Medical Nutrition Therapy Comprehensive Exam
b) PD requires more protein because of significant losses through the dialysate.
c) They are the same (1.2g/kg).
d) PD requires less protein to prevent azotemia.
Correct Answer: b) PD requires more protein because of significant losses through the dialysate.
Rationale: Patients on PD lose about 0.5 to 1.0g of protein per liter of dialysate, and even more
during peritonitis. Requirements are typically 1.2–1.3g/kg, whereas HD is usually 1.2g/kg.
4. A patient with Nephrotic Syndrome presents with massive edema and proteinuria. What is
the primary nutrition intervention goal?
a) High protein (>1.5g/kg) to replace urinary losses.
b) Low sodium and modest protein (0.8–1.0g/kg).
c) High calorie, low fat to prevent atherosclerosis.
d) Fluid restriction to 500mL.
Correct Answer: b) Low sodium and modest protein (0.8–1.0g/kg).
Rationale: While protein is lost in the urine, high protein intake can actually damage the
glomerulus further. Modest protein helps maintain nitrogen balance without accelerating
kidney decline. Sodium restriction is key for edema.
5. Which of the following is a characteristic of the DASH diet?
a) 4,000 mg Sodium, high calcium
b) 2,300 mg Sodium, high potassium, high magnesium
c) 1,500 mg Sodium, low calcium, high fiber
d) 3,000 mg Sodium, low fiber
Correct Answer: b) 2,300 mg Sodium, high potassium, high magnesium
Rationale: The DASH (Dietary Approaches to Stop Hypertension) diet emphasizes minerals like
potassium, magnesium, and calcium to lower blood pressure, while keeping sodium at or below
2,300mg.
3|Page
, Medical Nutrition Therapy Comprehensive Exam
6. A patient on hemodialysis has a high interdialytic weight gain (4.5 kg). Which of the following
is the most likely culprit?
a) Excessive protein intake
b) Excessive sodium intake
c) High phosphorus intake
d) Inadequate calorie intake
Correct Answer: b) Excessive sodium intake
Rationale: Sodium triggers thirst. Excessive sodium intake leads to increased fluid consumption,
resulting in high weight gain between dialysis sessions.
7. Which of the following lab values would you expect to see in a patient with untreated Stage 3
CKD?
a) Low Phosphorus, High Calcium
b) High Phosphorus, Low Calcium
c) High Hemoglobin, Low Potassium
d) Low Creatinine, High BUN
Correct Answer: b) High Phosphorus, Low Calcium
Rationale: As kidney function declines, phosphorus is not excreted efficiently. High phosphorus
leads to reciprocal lowering of serum calcium, which triggers PTH and can lead to bone disease
(renal osteodystrophy).
8. A patient is diagnosed with hypertriglyceridemia (550mg/dL). What should be the primary
focus of the MNT?
a) Increasing intake of soluble fiber
b) Restricting simple sugars and alcohol
c) Restricting cholesterol to <100 mg/day
d) Increasing intake of saturated fats
Correct Answer: b) Restricting simple sugars and alcohol
4|Page
MEDICAL NUTRITION THERAPY COMPREHENSIVE EXAM – COMMISSION ON
DIETETIC REGISTRATION / ACADEMY OF NUTRITION AND DIETETICS PREP
NEWEST 2026/2027 ACTUAL EXAM COMPLETE QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS) WITH DETAILED RATIONALES
|ALREADY GRADED A+||BRAND NEW VERSION!!
Description
This Medical Nutrition Therapy Comprehensive Exam heavily emphasizes Domain 2: Nutrition
Care for Individuals and Groups, which accounts for about 40% of the exam and requires you to
navigate the Nutrition Care Process (NCP) under pressure. You’ll be tested on your ability to
interpret complex lab values, manage drug-nutrient interactions, and calculate precise nutrition
support (EN/PN) for critically ill patients. The exam doesn't just ask for facts; it presents
"application-level" scenarios where you must choose the best intervention for a patient with
multiple comorbidities, such as a diabetic with Stage 4 CKD. Success requires a mastery of
Medical Nutrition Therapy (MNT) across the entire lifecycle, ensuring you can provide safe,
effective care from the NICU to geriatric long-term facilities.
Contents Covered
Chapter 1: Cardiovascular & Renal Disorders ................................................................................. 2
Chapter 2: Critical Care, PN/EN & Respiratory.............................................................................. 10
Chapter 3: Diabetes & Endocrine Disorders ................................................................................. 19
Chapter 4: Gastrointestinal & Hepatic Disorders .......................................................................... 26
Chapter 5: Oncology, Immunocompromised & Anemia ............................................................... 36
Chapter 6: Lifecycle & Metabolic Stress........................................................................................ 44
1|Page
, Medical Nutrition Therapy Comprehensive Exam
Chapter 1: Cardiovascular & Renal Disorders
Focus: Electrolyte management, hypertension, CKD stages, and fluid shifts.
1. A patient with Stage 4 Chronic Kidney Disease (CKD) presents with a serum potassium of
6.2mEq/L. Which of the following foods should the dietitian instruct the patient to avoid
immediately?
a) Canned peaches
b) White bread
c) Swiss chard
d) Blueberries
Correct Answer: c) Swiss chard
Rationale: A potassium level of 6.2mEq/L indicates hyperkalemia. Dark leafy greens like Swiss
chard are extremely high in potassium (>400mg per serving). Peaches, white bread, and
blueberries are considered low-potassium options.
2. A 65-year-old male with Heart Failure (HF) is taking Furosemide (Lasix). Which lab value
should the RDN monitor most closely for drug-nutrient interaction?
a) Serum Sodium
b) Serum Magnesium
c) Serum Potassium
d) Serum Phosphorus
Correct Answer: c) Serum Potassium
Rationale: Furosemide is a loop diuretic that is non-potassium-sparing. It increases the excretion
of potassium, sodium, and magnesium, but hypokalemia is the most common and clinically
significant risk for cardiac patients on this med.
3. When calculating a meal plan for a patient on Peritoneal Dialysis (PD), how does the protein
requirement differ from a patient on Hemodialysis (HD)?
a) PD requires less protein because the treatment is continuous.
2|Page
, Medical Nutrition Therapy Comprehensive Exam
b) PD requires more protein because of significant losses through the dialysate.
c) They are the same (1.2g/kg).
d) PD requires less protein to prevent azotemia.
Correct Answer: b) PD requires more protein because of significant losses through the dialysate.
Rationale: Patients on PD lose about 0.5 to 1.0g of protein per liter of dialysate, and even more
during peritonitis. Requirements are typically 1.2–1.3g/kg, whereas HD is usually 1.2g/kg.
4. A patient with Nephrotic Syndrome presents with massive edema and proteinuria. What is
the primary nutrition intervention goal?
a) High protein (>1.5g/kg) to replace urinary losses.
b) Low sodium and modest protein (0.8–1.0g/kg).
c) High calorie, low fat to prevent atherosclerosis.
d) Fluid restriction to 500mL.
Correct Answer: b) Low sodium and modest protein (0.8–1.0g/kg).
Rationale: While protein is lost in the urine, high protein intake can actually damage the
glomerulus further. Modest protein helps maintain nitrogen balance without accelerating
kidney decline. Sodium restriction is key for edema.
5. Which of the following is a characteristic of the DASH diet?
a) 4,000 mg Sodium, high calcium
b) 2,300 mg Sodium, high potassium, high magnesium
c) 1,500 mg Sodium, low calcium, high fiber
d) 3,000 mg Sodium, low fiber
Correct Answer: b) 2,300 mg Sodium, high potassium, high magnesium
Rationale: The DASH (Dietary Approaches to Stop Hypertension) diet emphasizes minerals like
potassium, magnesium, and calcium to lower blood pressure, while keeping sodium at or below
2,300mg.
3|Page
, Medical Nutrition Therapy Comprehensive Exam
6. A patient on hemodialysis has a high interdialytic weight gain (4.5 kg). Which of the following
is the most likely culprit?
a) Excessive protein intake
b) Excessive sodium intake
c) High phosphorus intake
d) Inadequate calorie intake
Correct Answer: b) Excessive sodium intake
Rationale: Sodium triggers thirst. Excessive sodium intake leads to increased fluid consumption,
resulting in high weight gain between dialysis sessions.
7. Which of the following lab values would you expect to see in a patient with untreated Stage 3
CKD?
a) Low Phosphorus, High Calcium
b) High Phosphorus, Low Calcium
c) High Hemoglobin, Low Potassium
d) Low Creatinine, High BUN
Correct Answer: b) High Phosphorus, Low Calcium
Rationale: As kidney function declines, phosphorus is not excreted efficiently. High phosphorus
leads to reciprocal lowering of serum calcium, which triggers PTH and can lead to bone disease
(renal osteodystrophy).
8. A patient is diagnosed with hypertriglyceridemia (550mg/dL). What should be the primary
focus of the MNT?
a) Increasing intake of soluble fiber
b) Restricting simple sugars and alcohol
c) Restricting cholesterol to <100 mg/day
d) Increasing intake of saturated fats
Correct Answer: b) Restricting simple sugars and alcohol
4|Page
