Asked by Cosette

This one seems like an easy question but I don't know where to start. Please help!

In serum, about 55% of total serum calcium is bound. The measurement of ionized (free) calcium with an ISE is 1.10 mM. What is an estimate of the total calcium in this specimen?
Answered by Jesse
BLD 414?
Answered by Jesse
My guess is that since 55% is bound, that means 45% is free.

So... make a ratio and solve for x

.45/1.10mM = .55/x

Whatever x equals, add it to 1.10mM since we are looking for the total calcium in serum.

What do you think?
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