Which would NOT be caused by a decrease in plasma Ca²⁺ levels in an otherwise normal person?

Question

Quizplus · Accepted Answer

A decrease in plasma Ca²⁺ levels typically results in an increase in parathyroid hormone levels and a subsequent increase in 1,25-dihydroxyvitamin D3 levels. This promotes the release of Ca²⁺ from bone, increases intestinal absorption of Ca²⁺, and reduces renal excretion of Ca²⁺. These mechanisms are typically associated with a decrease in bone density, not an increase. An increase in nerve and muscle excitability would typically be associated with an increase in Ca²⁺ levels, not a decrease. A decrease in the filtered load of Ca²⁺ would be expected with a decrease in plasma levels, but this is not a direct consequence of the decrease.

Which Would NOT Be Caused by a Decrease in Plasma