A nurse receives this laboratory result: lithium level 1 mEq/L. This result is:
a. within therapeutic limits
b. below therapeutic limits
c. above therapeutic limits
d. incorrect because of inaccurate testing
ANS: A
The normal range for a blood sample taken 8 to 12 hours after the last dose of lithium is 0.4 to 1 mEq/L.
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