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|Specimen type:||Serum or plasma|
|Container:||Serum (red) gel or lithium heparin (green) gel|
|Specimen volume:||0.3 mL|
Do not cleanse site with alcohol.
|Note:||Specimen stable for 7 days if cap is not removed from tube.|
|Reference value:||Flushing, lowered reflexes, impaired vision: 20-100 mg/dL
Depression of CNS: >100 mg/dL
Fatalities reported: >400 mg/dL