{"id":"lithium","name":"Lithium","shortName":"Lithium","aliases":["Lithium Level","Li","Lithium, Serum","Lithobid","Lithium, Serum or Plasma","Serum lithium","Litio","Lithium Carbonate","Eskalith","Priadel","Camcolit","Lithium Blood Level"],"abbreviations":["Li"],"loinc":[{"code":"14334-7","primary":true},{"code":"74806-1","primary":false},{"code":"3719-2","primary":false},{"code":"3723-4","primary":false}],"specimen":"serum","units":[{"ucum":"mmol/L","display":"mmol/L"},{"ucum":"meq/L","display":"mEq/L"}],"referenceRanges":[{"population":"Adults","low":0.6,"high":1.2,"unit":"mmol/L","unitDisplay":"mmol/L","note":"Long-term (maintenance) range from the FDA label: desirable serum lithium of 0.6 to 1.2 mEq/L, which equals 0.6 to 1.2 mmol/L, measured about 12 hours after the last dose. The label describes higher concentrations (about 1.0 to 1.5 mEq/L) during acute mania. NICE (England) advises aiming for 0.6 to 0.8 mmol/L in people taking lithium for the first time, and 0.8 to 1.0 mmol/L for people who relapsed on lithium or have ongoing milder symptoms that affect daily life. Your prescriber sets your personal target.","sources":[{"title":"LITHOBID (lithium carbonate) extended-release tablets: prescribing information","url":"https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=f7f5b69a-c2a1-4586-a189-1475d41387c0","publisher":"ANI Pharmaceuticals, via DailyMed (NIH National Library of Medicine)","year":2026},{"title":"Bipolar disorder: assessment and management (CG185), recommendations","url":"https://www.nice.org.uk/guidance/cg185/chapter/Recommendations","publisher":"National Institute for Health and Care Excellence (NICE)","year":2014}]}],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"Measures how much lithium, a mood-stabilizing medicine, is in your blood so your care team can keep it in a range that works and is safe.","url":"https://bloodtesttracker.com/markers/lithium","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}