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Grey Top (Potassium Oxalate)
Specimen Requirements
Preferred:
Container/Tube: Grey Top (Potassium Oxalate)
Minimum Volume: 0.5 mL Plasma (2 mL Blood)
Collection Instructions: Clean venipuncture site with Non-alcoholic, germicidal solution – providone iodine or castile soap wipe
Also Acceptable:
Container/Tube: Random Urine
Specimen Stability
It is recommended that the plasma be physically separated from contact with cells within two hours from the time of collection.
Samples should be analyzed without delay and immediately after opening the sample tube.
Reference Range
<10 mg/dL
Methodology
Enzymatic
CPT
82055
Test Alias
ETOH
Alcohol