What is the normal serum calcium concentration?
a. 4.5 to 5.3 mg/dl
b. 8.7 to 10.4 mg/dl
c. 98.0 to 105.0 mg/dl
d. 137 to 147 mg/dl
ANS: B
The normal serum calcium is 8.7 to 10.4 mg/dl or approximately 4.5 to 5.25 mEq/L.
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