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Test ID: FCOCB    
Cocaine and Benzoylecgonine Screen and GC/MS Confirmation, Blood-Forensic

Specimen Type Describes the specimen type needed for testing

Whole Blood NaFl-KOx

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Draw blood in a grey-top (potassium oxalate/sodium fluoride

tube(s), and send 7 mL of potassium oxalate/sodium fluoride

whole blood refrigerated.

Note:      If potassium oxalate/sodium fluoride tube is not used,

freeze immediately and send frozen in plastic vial.

Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.

3 mL
Note: Submission of the minimum volume results in an elevated
reporting limit and inability to repeat analysis.

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Specimens other than

Whole blood

Anticoagulants other than

Potassium oxalate/sodium fluoride, EDTA, sodium heparin

Hemolysis

NA

Thawing

Potassium oxalate/sodium fluoride – NA

EDTA or sodium heparin –

Warm reject; Cold reject

Lipemia

NA

Icteric

NA

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
Whole Blood NaFl-KOxRefrigerated (preferred)
 Ambient 72 hours
 Frozen