Lithium Blood



Quest Diagnostics Test Code: 613

Lithium is a naturally occurring element that is also one of the principal drugs used as a mood stabilizer and antipsychotic in people suffering from bipolar mood disorder. While this drug is very effective in treating this condition, it has a very narrow therapeutic range, which means that the level of lithium in the blood needs to be controlled in a range which is effective. Too much lithium can results in lithium toxicity, and too little lithium is be subtherapeutic. This test measures the amount of lithium in the blood.

This test is performed in following conditions such as:

•Ineffective treatment of bipolar mood disorder
•Drowsiness, lack of energy
•Muscle weakness
•Lack of coordination
•Slurred speech
•Nausea, vomiting and/or diarrhea
•Irregular tremors or shaking

Also Known As: Eskalith, LiCO3, Lithobid, Li blood


The blood collection for the Lithium, Blood (Serum) test should be done 6-12 hours after the person's last dose of Lithium and just prior to the next dose.


Specimen Collected
  • Blood
Estimated Time Taken

Turnaround time for the Lithium, Serum test is typically 1-2 business days.