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Mayo Clinic Laboratories

Test Code LAB29 Lithium

Additional Codes

CPT Code: 80178

Specimen Requirements

Draw blood in a gold-top serum gel tube. (Hemolyzed specimen or heparinized plasma is not acceptable.) Spin down and send 1 mL of serum.

Reference Values

Therapeutic range: 0.6 - 1.2 mEq/L

Critical value (automatic call-back): >2.0 mEq/L

Additional Information

Available STAT

Performing Laboratory

TidalHealth Peninsula Regional Core Laboratory - Chemistry