Method Name

Ion Selective Electrode (ISE)


Lithium, Lithium

Specimen Required

one SST/gel tube

Specimen Minimum Volume

2.0 mL of blood

Specimen Stability Information

Centrifuged specimen stable for 5 days refrigerated.

Special Instructions

Patient should be in a “steady state” concentration. Draw specimen at least 12 hours after last dose.

Performing Laboratory

As ordered. Turn around time is 4 hours.

Reference Values

Less than 1.6 mEq/L nToxic: > 1.6 mEq/L