| Ordering Code | 198 | 
|---|---|
| Test Name | Lithium | 
| Alias | Li | 
| Preferred Specimen | Serum | 
| Preferred Container | SST (Gold) | 
| Other Specimen/Container | Serum in Plain (Red) | 
| Optimum Volume | 0.5 mL | 
| Handling Instructions | Centrifuge to separate and aliquot specimen within 4 hours of collection. | 
| Transport Requirements | Oahu: Refrigerated Airline: Refrigerated | 
| Specimen Stability | Ambient: 1 Day Refrigerated: 7 Days Frozen: 6 Months | 
| Rejection Criteria | Hemolyzed, Specimen older than stability limits, Lithium heparin plasma received | 
| Avail. Stat | YES | 
| Analytic Time | 1 Day | 
| Methodology | Colorimetric | 
Reference range(s)
The reference ranges listed below are valid on this date of October 31, 2025.
      | Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info | 
|---|---|---|---|---|---|---|---|---|---|
| Lithium | ALL | 0.5-1.2 | >= 1.6 | 0.5-1.2 | >= 1.6 | mEq/L |