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Test Code LITH Lithium

Performing Laboratory

General Hospital Laboratory          304-388-6244          
Greenbrier Valley Laboratory 304-647-6060

Specimen Requirements

Serum- Red top tube

Serum should be separated from the cells if storage of more than 4 hours is anticipated

Specimen Rejection

  • Improperly labeled, collected, stored, and transported
  • Quantity not sufficient

Storage and Stability

Refrigerated 2-8oC 7 days
Frozen <-20oC 1 year

Reference Values

0.50-1.00 mmol/L

 

It is recommended that a 12 hour post dose serum lithium concentration be used to assess adequate therapy.  Peak concentration is reached 2-4 hours after oral dose.

 

Critical Value: >2.00 mmol/L

Methodology

Spectrophotometric General
Colorimetric Greenbrier 

Days Test Set Up and Turnaround

Monday through Sunday, Continuously 

AM Collection Expected by 9AM same day
Routine Expected within 24 hrs
Stat Expected within 1 hr
Timed Expected results are test dependant

CPT Coding

80178