ARUP's Laboratory Test Directory

Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma : 0090684

Mnemonic: COC MET SP

Methodology: Quantitative Gas Chromatography-Mass Spectrometry
Performed: Sun-Sat
Reported: 1-4 days
Specimen Required: Collect: Gray (sodium fluoride/potassium oxalate). Also acceptable: Plain red, green (sodium heparin), lavender (EDTA), or pink (K2EDTA).

Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 4 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 2 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Separator tubes. Plasma or whole blood collected in lt. blue (sodium citrate). Specimens exposed to repeated freeze/thaw cycles.

Stability (collection to initiation of testing): After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 3 years

Interpretive Data: Drugs covered: cocaine, benzoylecgonine, m-hydroxybenzoylecgonine (qualitative only), and cocaethylene.

Positive cutoff:
20 ng/mL

The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.

For medical purposes only; not valid for forensic use.

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 82520
Cross References: Benzoylecgonine (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma), Benzoylmethylecgonine (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma) , Cocaethylene (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma), Cocaine (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma), Crack (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma), M-OH Benzoylecgonine (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma) , Pain Management (Drugs of Abuse Confirmation/Quantitation - Cocaine & Metabolites - Serum or Plasma)