Nutrition and Dietetics for Ammonia Production Management
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Questions and Answers

What is the purpose of L-arginine supplementation in UCD patients?

  • To stimulate appetite
  • To increase ammonia production
  • To prevent protein catabolism
  • To prevent arginine deficiency and assist in waste nitrogen excretion (correct)

What is the maximum percentage of total kcal that CHO should not exceed in a low-protein diet for UCD patients?

  • 50% (correct)
  • 40%
  • 60%
  • 30%

What is the frequency of monitoring plasma ammonia levels in UCD patients initially?

  • Weekly
  • Monthly
  • Quarterly
  • Daily (correct)

What is the purpose of sodium benzoate in UCD patients?

<p>To assist in waste nitrogen excretion (B)</p> Signup and view all the answers

What is the recommended dietary intake of protein for UCD patients?

<p>Less than RDA (D)</p> Signup and view all the answers

What is the purpose of measuring plasma albumin and globulin levels in UCD patients?

<p>To evaluate nutritional adequacy (B)</p> Signup and view all the answers

What is the goal of prescribing sodium benzoate, sodium phenylacetate, or sodium phenylbutyrate in the management of UCD?

<p>To decrease accumulated toxic precursors (C)</p> Signup and view all the answers

What is the role of L-arginine or L-citrulline supplementation in UCD management?

<p>To add a deficient cyclic product (B)</p> Signup and view all the answers

What is the target range for plasma ammonia levels in UCD management?

<p>&lt; 50 µmol/l (A)</p> Signup and view all the answers

Why is protein restriction based on serum ammonia levels in UCD management?

<p>To adjust protein intake according to individual needs (A)</p> Signup and view all the answers

What is the purpose of using an EAA mixture in UCD nutrition therapy?

<p>To supply 50% of the prescribed protein (C)</p> Signup and view all the answers

What is the diagnostic significance of measuring plasma ammonia levels in UCD?

<p>To detect elevated levels indicating UCD (B)</p> Signup and view all the answers

What is the primary function of the urea cycle in the body?

<p>To remove nitrogen from the blood and convert it to urea (D)</p> Signup and view all the answers

What is the consequence of a deficiency in N-acetylglutamate synthetase (NAGS) in the urea cycle?

<p>Decreased plasma citrulline and arginine (B)</p> Signup and view all the answers

What is the primary mode of inheritance for urea cycle disorders (UCDs)?

<p>Autosomal recessive (D)</p> Signup and view all the answers

What is the main clinical presentation of urea cycle disorders (UCDs)?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following is NOT a factor that influences the degree of hyperammonemia in urea cycle disorders (UCDs)?

<p>Age of the individual (C)</p> Signup and view all the answers

What is the typical location where the urea cycle operates?

<p>Primarily in the liver (A)</p> Signup and view all the answers

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