93540 Methadone Quantitative

Specimen:

Collect:

One 4 mL Gray Top

Also Acceptable
One 4 mL Green Top (Na Heparin)
One 4 mL Lavender (EDTA)
One 6 mL Pink Top (EDTA)
One 10 mL Red Top

Submit:

4 mL (Min:2 mL) Serum. Submit Refrigerated. Submit in a Standard Transport Tube.

Also Acceptable
4 mL (Min:2 mL) Plasma. Submit Refrigerated. Submit in a Standard Transport Tube.

Special Handling:

Avoid Repeated Freeze/Thaw Cycles
Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection.

Rejection Criteria:

Specimens exposed to repeat freeze/thaw cycles
Use of separator tubes
Plasma or whole blood collected in lt. blue (sodium citrate)

Stability:

Ambient: 1 Week(s); Refrigerated: 2 Week(s); Frozen: 24 Month(s); Incubated: Unacceptable

Methodology:

Quantitative Liquid Chromatography-Tendem Mass Spectrometry

Performed:

Sun-Sat

Reported:

2-5 Day(s)

CPT Codes:

83840