Test Code LAB29 Lithium, Serum
Reporting Title
Lithium
Methodology
Roche Diagnostics, ISE: RMH, BH, DH, DMH, GCMH, GMC, GMH, MGH, MH, OBH, PMH, WECC Core Laboratories
Performing Laboratory
OhioHealth Laboratory Services - RMH, BH, DH, DMH, GCMH, GMC, GMH, MGH, MH, OBH, PMH, WECC Core Laboratories
Specimen Requirements
Draw blood in a gold-top or a speckled-top serum gel tube(s). (Green-top [heparin] tube or lavender-top [EDTA] tube is not acceptable.) Spin down and send 1 mL of serum refrigerated. Serum for a trough level should be drawn 15 minutes prior to next oral dose. Serum for a peak level should be drawn 3 hours post oral dose.
Note: Plain, red-top tube(s) is also acceptable.
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Serum | Refrigerated | 7 days |
Ambient | 1 day | |
Frozen | 6 months |
Specimen Transport Temperature
Refrigerate: OK
Ambient: OK
Frozen: NO
Reference Values
Therapeutic concentration: 0.6-1.2 mmol/L
Toxic concentration: >1.5 mmol/L
Critical value >1.5 mmol/L
Alerting category: Always called within 1 hour
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
80178