A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Lithium

Test Code
LI


CPT Codes
80178

Preferred Specimen
2 mL serum


Patient Preparation
Collect just prior to next dose

Minimum Volume
0.5 mL


Other Acceptable Specimens
Serum separator (gel barrier) tubes • EDTA plasma • No lithium containing anticoagulants


Transport Container
Serum separator tube (SST)


Transport Temperature
Room temperature


Specimen Stability
Room temperature: 10 days
Refrigerated: 10 days
Frozen: Not established


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Plasma from lithium-based anticoagulants


Methodology
Immunoassay (IA) • Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) • Spectrometry • Spectrophotometry (SP)

Setup Schedule
a.m. Tues-Sun


Report Available
2 days


Reference Range
0.6-1.2 mmol/L


Clinical Significance
Lithium is used to treat manic-depressive disorders and the manic phase of affective disorders, including mania. The therapeutic window is relatively small. Therapeutic drug monitoring is useful to optimize dose and avoid toxicity.


Performing Laboratory
Quest Diagnostics - Great Lakes Region




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.