Measurement of Catecholamines Precautions Quiz
12 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is one precaution mentioned for ensuring accurate measurement of catecholamines?

  • Urine samples should be exposed to sunlight for better results
  • Use of antioxidants like glutathione can lower catecholamine values
  • Placing urine samples in clear containers is recommended
  • Prolonged exposure to platelets may increase catecholamine values (correct)

What is the recommended patient position prior to collecting samples for catecholamine testing?

  • Sitting
  • Standing
  • Lying down for 15 to 30 minutes (correct)
  • Walking around

Which food items should be restricted prior to the collection of urine samples for catecholamine testing?

  • Citrus fruits, vanilla, coffee (correct)
  • Bananas, chocolates, tea
  • Bread, rice, vegetables
  • Cocoa, coffee, milk

In which position do norepinephrine levels increase markedly according to the text?

<p>Standing (C)</p> Signup and view all the answers

Which hormone is the major intact catecholamine in urine?

<p>Dopamine (B)</p> Signup and view all the answers

Why is the measurement of urine metanephrines considered the assay of choice for Pheochromocytoma?

<p>Catecholamines are easily degraded in the circulation (B)</p> Signup and view all the answers

What can be used as a marker to follow the response of patients with adrenal medullary insufficiency to treatment?

<p>Chromogranin A protein levels (B)</p> Signup and view all the answers

In which conditions are increased norepinephrine and dopamine but not epinephrine seen?

<p>Neuroblastoma (A)</p> Signup and view all the answers

What is the primary reason for using antioxidants when collecting urine samples for catecholamine testing?

<p>To stabilize catecholamines and prevent their breakdown (D)</p> Signup and view all the answers

What restrictions should be followed in terms of food intake prior to collecting urine samples for catecholamine testing?

<p>Avoid foods high in tyrosine (A)</p> Signup and view all the answers

Why is it important to measure norepinephrine levels in different positions?

<p>To differentiate between normal and pathological catecholamine levels (B)</p> Signup and view all the answers

How does stress impact catecholamine values in the body?

<p>Stress triggers the release of catecholamines, increasing their levels (D)</p> Signup and view all the answers

More Like This

Monamines and Catecholamines Receptors
14 questions
Catecholamines: Metabolic Functions
6 questions
Catécholamines en soins critiques
51 questions
Use Quizgecko on...
Browser
Browser