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Lithium

Source Blood
Mnemonic LI
Specimen Requirements

1 x 3.5 mL gold top SST tube. DO NOT collect in light green (mint) top PST or other lithium heparin tube.

0.2 mL serum

Minimum Whole Blood Volumes for Micro-Collections using Microtainers 

Collect specimen 0-60 minutes prior to dose for patients on multiple daily dose regimen

Collect specimen 12 hours or more after dose for patients on single daily dose regimen..

Specimen Handling DO NOT aliquot.

Samples that are aliquoted will be REJECTED and a recollection will be required.

Send original tube only.
Additional Information

Record time of last dose on requisition.

For additional information, see Half-life and Time to Steady State.

Testing Location Chemistry-DSC, FMC
Rural: HRH
Testing Frequency Daily
Alternate Name(s)
Reference Interval

Therapeutic range:  0.80 - 1.50 mmol/L (acute therapy)
                               0.60 - 1.20 mmol/L (chronic therapy)

Click here for critical values.