Calcium/phosphate metabolism and homeostasis Flashcards
1
Q
What is calcium and phosphate filtered by
A
the kidneys, 75% reabsorbed in proximal tubule and 5-20% in distal tubule
2
Q
What inhibits phosphate resorption
A
PTH and FGF23
3
Q
What is the role of phosphate
A
Ceritical in skeletal developement and bone mineralisation
4
Q
What type of calcium do we measure
A
total calcium
5
Q
Define free calcium
A
The measurement of the amount of calcium binded to albumin
6
Q
If someone has low albumin calcium, what may there free and total calcium measurements be?
A
Total calcium would be low, but free calcium may be normal
