Question 1
In the Krebs cycle, which enzyme catalyzes the conversion of pyruvate to acetyl-CoA, linking glycolysis to aerobic metabolism?
Correct Answer:
Pyruvate dehydrogenase complex
Question 2
A patient with MTHFR C677T homozygous variant presents with elevated homocysteine. Which nutrient form is most appropriate to bypass the enzymatic defect?
Correct Answer:
5-methyltetrahydrofolate (5-MTHF)
Question 3
During beta-oxidation, each cycle of a saturated even-chain fatty acid produces which combination of products?
Correct Answer:
1 acetyl-CoA, 1 FADH2, 1 NADH
Question 4
Which serum marker is the most reliable indicator of long-term glycemic control in a patient with type 2 diabetes mellitus?
Correct Answer:
Hemoglobin A1c (HbA1c)
Question 5
A 45-year-old woman with fatigue has serum ferritin of 8 ng/mL, TIBC of 420 mcg/dL, and transferrin saturation of 12%. This pattern is most consistent with:
Correct Answer:
Iron deficiency anemia
Question 1
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About this Exam

Prepare with the CCN Practice Questions - CNCB Certified Clinical Nutritionist Exam practice quiz. This question bank includes 100 questions covering patient, dietary, primary, acid, and serum. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CCN Practice Questions - CNCB Certified Clinical Nutritionist Exam

This practice set contains 100 questions from the matching question bank and focuses on patient, dietary, primary, acid, and serum. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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