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Thread: Calcium Absorption?

  1. #1
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    Cool Calcium Absorption?

    Which of the following DOES NOT contribute to calcium absorption in the intestine?

    A. High Parathyroid Hormone (PTH)
    B. Low Serum Calcium
    C. High Serum Phosphate
    D. A vacation in the sun in the Virgin Islands
    E. Both A & B

    Which 1? this question is driving me crazy, and supposedly D is wrong, heh.
    I procrastinate....

  2. #2
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    lolz..
    which kinda of option [d]?
    mcq made by yourself?


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    Lol..

    I guess it might be -C- but not sure thou?!

    Option D: A vacation in the sun in the Virgin Islands---->Sunbath---->VitaminD---->Increased Calcium absorbtion from intestine!

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    yea its C
    I procrastinate....

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    Question

    Sunlight (UV rays)only helps in making of vit. D in the adipose tissue.....how does it enhance Ca absorption from intestine????

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    Quote Originally Posted by drgauravkatiyar View Post
    Sunlight (UV rays)only helps in making of vit. D in the adipose tissue.....how does it enhance Ca absorption from intestine????
    agree. But funny option.
    ==========
    @a4assains-
    High serum phosphate -- secondary hyperparathyroidism--Increases Ca absorption??
    So it should be true.
    Isn't it?


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    But the question is

    Which of the following DOES NOT contribute to calcium absorption in the intestine?
    So u have to exclude the option Vitrag...

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    Answer is C.

    Vit D is required for absorption of Calcium from the intestine. In fact, some doctors have suggested that Calcium tablets prescribed for bone fractures should be accompanied with Vitamin D supplement.

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    Quote Originally Posted by Amal View Post
    Answer is C.

    Vit D is required for absorption of Calcium from the intestine. In fact, some doctors have suggested that Calcium tablets prescribed for bone fractures should be accompanied with Vitamin D supplement.
    That's true....infact now a days every Calcium Tab. contains Vit D3 as supplement...

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    Quote Originally Posted by vitrag24 View Post
    High serum phosphate -- secondary hyperparathyroidism--Increases Ca absorption??
    So it should be true.
    Isn't it?
    Phosphate doesn't stimulate PTH, its serum calcium!

    Quote Originally Posted by drgauravkatiyar View Post
    Sunlight (UV rays)only helps in making of vit. D in the adipose tissue.....how does it enhance Ca absorption from intestine????
    Vitamin D has 2 function:

    1. Increases intestinal absorbtion of calcium and phosphate
    2. In kidney it increases proximal tubular reabsorbtion of phosphate.

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