Vit K

13 Questions | Attempts: 137
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  • 1/13 Questions

    Osteoblasts require vit K for the secretion of oseteocalcin

    • True
    • False
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Vit K - Quiz
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Quiz on Vit K


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  • 2. 

    Long term antibiotic users are at risk of a vit K deficiency

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Kills the Vit K making bacteria in the large intestine

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  • 3. 

    Enough vit k is made endogenously for 1/2 of our total requirements

    • True

    • False

    Correct Answer
    A. True
  • 4. 

    Vit K is readily excreted in faces so toxicity due to build up is not common

    • True

    • False

    Correct Answer
    A. True
  • 5. 

    K3 is the form of Vit K produced by intestinal bacteria

    • True

    • False

    Correct Answer
    A. False
    Explanation
    K2 is the form produced by intestinal bacteria in the large intestine

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  • 6. 

    The RDI for Vit K is 150mg/day

    • True

    • False

    Correct Answer
    A. False
    Explanation
    There is no RDI for Vit K as we synthesis some of it endogenously

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  • 7. 

    Vit K increases the efficiency of anticoagulant drugs such as warfarin

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Vit K promotes blood clotting, drugs such as warfarin try to stop the blood clotting so Vit K is DECREASING the efficiency.

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  • 8. 

    Megadoses of Vit A inhibit absorption of Vit K

    • True

    • False

    Correct Answer
    A. True
  • 9. 

    Vit K is involved in: (can choose more than 1)

    • Blood clotting process

    • An essential cofactor for carboxylases in the liver

    • Maintaining epithelial cell integrity

    • Bone metabolism

    Correct Answer(s)
    A. Blood clotting process
    A. An essential cofactor for carboxylases in the liver
    A. Bone metabolism
  • 10. 

    Which of these explain why newborns are at risk of vit K deficiency?

    • Sterile intestinal tract so cannot make Vit K

    • Havn't had enough exposure to the sun

    • Vit K cannot cross the placenta

    • Breast milk is low in Vit K

    Correct Answer(s)
    A. Sterile intestinal tract so cannot make Vit K
    A. Vit K cannot cross the placenta
    A. Breast milk is low in Vit K
  • 11. 

    Vit K injections for new borns are mandatory in NZ

    • True

    • False

    Correct Answer
    A. False
    Explanation
    they are recommended by the governement

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  • 12. 

    New born babies can be given a vit k                              (1) to prevent                                                                  (5 words)

    Correct Answer
    injection
    hemorrhagic disease of the newborn
  • 13. 

    A Vit K deficiency is defined as:                                           blood coagulation factors in circulation

    Correct Answer
    undercarboxylated
    under carboxylated
    under-carboxylated

Quiz Review Timeline (Updated): Jan 18, 2013 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jan 18, 2013
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 22, 2010
    Quiz Created by
    Cyarnton
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