Description
The lithium test is used to measure and monitor the amount of lithium in the blood so health care providers can determine whether drug concentrations are in the therapeutic range. The test may be used to measure blood levels every few days when a person first begins taking lithium to help adjust the dose and reach the desired blood level and may also be used at regular intervals or as needed to monitor blood concentrations. If a person starts taking additional medications, a health care provider may order one or more lithium tests to judge their effect, if any, on lithium levels. Lithium tests may also be ordered if toxicity is suspected.
