PHENCYCLIDINE, QUANTITATIVE Mnemonic <MISC Synonym PCP Specimen Collection Requirements Collect Serum or Plasma Handling Refrigerate Preferred Volume 3.0 mL Minimum Volume 1.5 mL Rejection Criteria Specimens collected in gel tubes Testing Information Performed 7 days/week Method GC/MS Referral Lab Legacy Laboratory Services Reference Values Toxic Levels >90-800 ng/mL FATAL 500-4,000 ng/mL CPT Codes 83992 Last Updated: Thursday, January 5, 2017 03:42:24 AM