What is the normal range for serum phosphate?
a. 1.2 to 2.3 mEq/L
b. 3.5 to 5.8 mEq/L
c. 9.0 to 10.5 mEq/L
d. 98.0 to 106.0 mEq/L
ANS: A
Only approximately 1% of the total-body phosphorus is available as free serum compounds, so the serum level (1.2 to 2.3 mEq/L) does not necessarily reflect total-body content.
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