Lithium Level

Sunquest Code:LI  
Epic Code:LAB29Epic Name:Lithium Level
Methodology:Bichromatic end point
Turnaround Time:Performed and reported 24 hours/day.

Collection Instructions

Optimal Volume:2.5 mL
Minimum\Peds Volume:0.6 mL
Container:Red (no gel) (Green (sodium heparin, no gel))
Collection Instructions:Specimen should be collected at least 8 -10 hours after the last dose and preferably at the same time of day for each patient. Do not draw in Lithium Heparin (green) tube.
Causes for Rejection:Samples drawn in gel tube. Hemolyzed and icteric specimens.

Processing and Shipping

Specimen Processing:Centrifuge and aliquot within 2 hours of collection 1.25 mL, 0.2 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:Stability: Room temperature - 24 hours; refrigerated - 7 days; frozen - 6 months.
Test Performed at or Referral Lab Chemistry  (Fairview Range - FRMC, UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, Grand Itasca GICH)


Critical Range:Greater than 2.00 mmol/L
GICH: Greater than 1.5 mmol/L
Reference Range:0.60 - 1.20 mmol/L
GICH: 1.0-1.2 mmol/L
Limitations:Therapeutic: 0.60 - 1.20 mmol/L;
Potentially toxic: >1.50 mmol/L;
Severe toxicity: >2.50 mmol/L
Use:Monitoring lithium therapy.

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