RBC Disorders: Porphyria, Hemoglobinopathies, Thalassemia Overview
10 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

Which of the following components is NOT found in Drabkin's reagent used to measure hemoglobin from blood samples?

  • Potassium cyanide
  • Potassium ferricyanide
  • Sodium chloride (correct)
  • Potassium dihydrogen phosphate (KH2PO4)
  • What is the role of potassium ferricyanide in measuring hemoglobin using Drabkin's reagent?

  • Generates a stable pigment to measure optical density
  • Combines with methemoglobin to form cyanmethemoglobin
  • Centrifuges the diluted blood to reduce turbidity
  • Converts hemoglobin iron from Fe++ to Fe+++ (correct)
  • What does the color intensity of the mixture measured at a wavelength of 540 nm indicate in hemoglobin measurement?

  • Formation of cyanmethemoglobin
  • Presence of lipemic blood
  • Level of WBC count
  • Concentration of hemoglobin (correct)
  • Why can't HbF be used for hemoglobin determination in newborns?

    <p>It is resistant to alkali hematin</p> Signup and view all the answers

    Which form of hemoglobin is NOT measured using the colorimetric method known as Acid Hematin (Sahli’s Method)?

    <p>Hemoglobin F</p> Signup and view all the answers

    What is the purpose of potassium cyanide in the measurement of hemoglobin using Drabkin's reagent?

    <p>Forms cyanmethemoglobin with methemoglobin</p> Signup and view all the answers

    Which type of blood leads to a false increase in hemoglobin levels when using the colorimetric method?

    <p>'Lipemic' blood</p> Signup and view all the answers

    'Sulfhemoglobin' is excluded when measuring all forms of hemoglobin using which method?

    <p>'Drabkin's reagent'</p> Signup and view all the answers

    'High WBC count' can lead to a false increase in hemoglobin levels due to what factor?

    <p>'Turbidity' in the sample</p> Signup and view all the answers

    'Acid Hematin (Sahli’s Method)' uses which reagent for measuring hemoglobin concentration?

    <p>'0.1 N HCl'</p> Signup and view all the answers

    More Like This

    Erythropoiesis Disorders Quiz
    21 questions

    Erythropoiesis Disorders Quiz

    DedicatedLapisLazuli3966 avatar
    DedicatedLapisLazuli3966
    Hematopoietic Systems: Hemolytic Anemia II
    10 questions
    Red Blood Cell Morphology Quiz
    8 questions
    RBC Metabolism & Iron Disorders
    30 questions
    Use Quizgecko on...
    Browser
    Browser