Tumor Markers Quiz
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Questions and Answers

Which of the following is a property of a good tumor marker?

  • It should have the same immunological properties when synthesized in other tissues
  • Its plasma level should be higher in healthy subjects
  • It should be present in healthy tissues
  • Its plasma level should be in proportion to the size of the tumor (correct)
  • Which type of molecule can be classified as a tumor marker?

  • Nucleotides
  • Carbohydrates (correct)
  • Lipids
  • Vitamins
  • What is the role of genetic changes in tumor markers?

  • They affect the half life of a tumor
  • They cause benign conditions
  • They have no impact on tumor markers
  • They lead to mutations in some oncogenes and tumor suppressor genes (correct)
  • In relation to tumor markers, what is the significance of a long half life?

    <p>It should not be very long</p> Signup and view all the answers

    What should the plasma level of a good tumor marker be in relation to healthy subjects and benign conditions?

    <p>At a minimum level</p> Signup and view all the answers

    Study Notes

    Tumor Markers

    Properties of Good Tumor Markers

    • A good tumor marker should have high sensitivity and specificity to detect cancer
    • A good tumor marker should have a high positive predictive value to accurately diagnose cancer and avoid false positives

    Types of Tumor Markers

    • Proteins, such as enzymes, hormones, and receptors, can be classified as tumor markers
    • Genetic material, such as DNA and RNA, can also be classified as tumor markers

    Genetic Changes in Tumor Markers

    • Genetic changes, such as mutations and overexpression, can contribute to the development of tumor markers
    • Genetic changes can cause altered gene expression, leading to changes in protein production or function

    Significance of Half-Life

    • A long half-life allows for consistent and reliable detection of tumor markers in the blood
    • A long half-life enables monitoring of tumor marker levels over time to track treatment response or disease progression

    Ideal Plasma Levels

    • The plasma level of a good tumor marker should be low or undetectable in healthy subjects and benign conditions
    • The plasma level of a good tumor marker should be significantly elevated in cancer patients

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    Description

    Test your knowledge about tumor markers, the molecules associated with abnormal production in cancer and measured in plasma. Learn about the properties of a good tumor marker and its relevance in cancer diagnosis.

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