Lithium Level

Abbrev Code:LI   
Order Code:LAB29Order Name:Lithium Level
Methodology:Colorimetric test
CPT Codes: 80178 x1, 80178 x1
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Roche Go Live Schedule

Collection Instructions

Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Red (no gel)
Collection Instructions:Specimen should be collected at least 8 -10 hours after the last dose and preferably at the same time of day for each patient. Do not draw in lithium heparin (green) tube.
Causes for Rejection:Samples drawn in gel tube. Hemolyzed and icteric specimens.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot within 4 hours of collection 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:1 day at room temperature; 7 days refrigerated; 6 months frozen.
Test Performed at or Referral Lab Chemistry  (Roche-Grand Itasca, Roche-Lakes, Roche-Northland, Roche-Range, Roche-Ridges, Roche-Southdale, Roche-St. John's, Roche-UMMC East, Roche-UMMC West)


Critical Range:Greater than 2.0 mmol/L. Levels higher than 1.5 mmol/L 12 hours after a dose indicate a significant risk of intoxication.
Therapeutic Range:0.6-1.2 mmol/L
Use:Monitoring lithium therapy.

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