Ca and PO4 Physiology Flashcards

1
Q

what effect does PTH (parathyroid hormone) have on Ca and PO4?

A

increases Ca

decreases PO4

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2
Q

decreased levels of Ca causes what to happen to PTH levels?

A

increases PTH levels

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3
Q

what effect does PTH have on HCO3 levels ?

A

decreases

- increases excretion of HCO3

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4
Q

calcitriol production is stimulated by what?

A

decreased Ca, PO4

increased PTH

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5
Q

what effect does calcitriol have?

A

increases Ca and PO4 absorption at the gut

decreases PTH release

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6
Q

what effect does magnesium have on Ca?

A

magnesium prevents PTH release so decreases Ca

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7
Q

what does alkalosis do to the level of Ca?

A

alkalosis decreases albumin protonation and increases Ca binding so reduces the level of Ca in the serum

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8
Q

what effect does prolonged tourniquet

A

increases albumin and increases Ca

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9
Q

if albumin decreases what happens to the level of Ca?

A

Ca also decreases

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