Drugs of Abuse, Serum or Plasma - Screen with Reflex to Confirmation/Quantitation DOAP9

Method(s) Qualitative Enzyme-Linked Immunosorbent Assay/Quantitative Gas Chromatography-Mass Spectrometry/Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Specimen Required
Collect

Two 6 mL gray (potassium oxalate/sodium fluoride) top tubes. Also acceptable: plain red, green (sodium heparin), lavender (EDTA), or pink (K2EDTA) top tubes.

Transport

4 mL serum or plasma, refrigerated (Min: 3 mL)

Remarks

Remove serum or plasma from cells ASAP OR within 2 hours of collection. Plasma is preferred over serum. Cocaine and cocaethylene are more stable in fluoride-preserved plasma than serum.

Stability

After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 3 years

Unacceptable Conditions

Samples exposed to repeated freeze/thaw cycles. Separator tubes and plasma or whole blood from light blue (sodium citrate) top tubes.

Schedule Daily
Billing Code 5011525
CPTCode 80301; if positive, add appropriate CPT code(s): 80324; 80359; 80345; 80346; 80349; 80353; 80358; 80361; 80365; 80348; 83992 (Alt code: G0479; if positive, add appropriate CPT code(s): G0480)
Notes Screen positive specimens are automatically confirmed by GC/MS or LC-MS/MS; additional charges may apply. If specimen screens positive, then the confirmation test for the drug class will be added.
Preferred Specimen Collection Device(s)
Reference Interval
Effective: August 15, 2016 
Drugs covered and cutoff concentrations:
Drugs/Drug ClassesScreen
Amphetamines30 ng/mL
Methamphetamine30 ng/mL
Barbiturates75 ng/mL
Benzodiazepines75 ng/mL
Buprenorphine1 ng/mL
Cocaine30 ng/mL
Marijuana30 ng/mL
Methadone and metabolite40 ng/mL
Opiates30 ng/mL
Oxycodone30 ng/mL
Phencyclidine15 ng/mL
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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