Connect Sign In
0020038
Lithium, Serum or Plasma
LI
Ordering Recommendation
Monitor patient adherence and exposure.
New York DOH Approval Status
This test is New York state approved.
Specimen Required
Patient Preparation
Specimens are commonly drawn approximately 12 hours after last dose of lithium taken.
Collect
Clot Activator Tube, Plain Red, or Green (Sodium Heparin).
Specimen Preparation
Allow specimen to clot completely at room temperature. Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)
Storage/Transport Temperature
Frozen.
Unacceptable Conditions
Specimens collected in lithium heparin or sodium fluoride/potassium oxalate. Grossly hemolyzed specimens.
Remarks
Stability
After separation from cells: Ambient: 24 hours; Refrigerated: 7 days; Frozen: 6 months
Methodology
Colorimetry
Performed
Sun-Sat
Reported
Within 24 hours
Reference Interval
Therapeutic: 0.5-1.2 mmol/L
Toxic: 1.6 or greater mmol/L
Interpretive Data
Compliance Category
FDA
Note
Hotline History
N/A
CPT Codes
80178
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0020038 | Lithium, Serum or Plasma | 14334-7 |
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
- Li concentration
Lithium, Serum or Plasma
