General Flashcards
7 cards from real Clinical Nutritionist CCN practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General flashcards as text
A client presents with fatigue, pale conjunctiva, and a mean corpuscular volume (MCV) of 72 fL. Which nutrient deficiency is most likely responsible?
Answer: Iron
Iron deficiency causes microcytic anemia characterized by low MCV, reflecting impaired hemoglobin synthesis.
Which of the following is the primary function of carnitine in cellular metabolism?
Answer: Transporting long-chain fatty acids into the mitochondria
Carnitine shuttles long-chain fatty acids across the inner mitochondrial membrane so they can undergo beta-oxidation.
A clinical nutritionist is designing a meal plan for a patient with end-stage renal disease on hemodialysis. Which nutrient restriction is typically LESS stringent for dialysis patients compared to pre-dialysis patients?
Answer: Protein
Hemodialysis patients actually require higher protein intake (1.2–1.4 g/kg/day) due to dialysis-related losses, unlike pre-dialysis patients who restrict protein.
Which vitamin acts as a coenzyme in transamination reactions and is critical for amino acid metabolism?
Answer: Vitamin B6 (pyridoxine)
Pyridoxal phosphate, the active form of vitamin B6, is the essential coenzyme in all transamination reactions.
According to the Dietary Reference Intakes (DRIs), which value represents the average daily intake level sufficient to meet the nutrient requirement of half of all healthy individuals?
Answer: Estimated Average Requirement (EAR)
The EAR meets the requirements of 50% of individuals, while the RDA is set to cover 97–98% of the population.
A patient with phenylketonuria (PKU) must restrict which amino acid to prevent neurological damage?
Answer: Phenylalanine
PKU is caused by a deficiency of phenylalanine hydroxylase, so dietary phenylalanine must be severely restricted to prevent toxic accumulation.
Which assessment method uses bioelectrical impedance to estimate body composition?
Answer: Bioelectrical impedance analysis (BIA)
BIA passes a low-level electrical current through the body and estimates fat-free mass and fat mass based on tissue resistance.
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