nbme 4 q

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nbme 4 q

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ladybug
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05/09/06 - 12:34 AM

What causes hypocalcemia in chronic renal insufficiency?

a. decereased secretionof PTH

b. high conc of PTH related peptide

c. hyperphosphatemia

d. increased sec of calcitonin

Diego Casali
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05/09/06 - 05:43 AM

The right answer is hyperphosphatemia.

robin082006
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05/09/06 - 08:36 AM

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ladybug
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05/09/06 - 08:40 AM

Isnt it that in sec hyperparathyroidism, there is decreased Calcium and decreased plasma phosphate? Why C?

ladybug
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05/09/06 - 08:47 AM

or am i wrong?

robin082006
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05/09/06 - 09:09 AM

They cannot both decrease.

CRF-->decreased phosphate excretion-->increased serum phosphate-->decreased serum Ca...> hyperthyroidism.

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ndspider
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06/04/06 - 04:18 PM

The answer is A.

Renal Failure.... cannot utilize Vitamin D (25-O etc,,,) cannot absorb calcium and PTH is decreased because it needs vitamin D.

study_ing
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06/04/06 - 05:21 PM

it DEFINITELY is not A. there is secondary hyperPTH in renal disease.

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xwxf
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06/04/06 - 10:47 PM

ndspider
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06/07/06 - 07:43 AM

#10

Yup, My Bad

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