PAROXETINE, BLOOD Mnemonic PAXIL Synonym Paxil® Specimen Collection Requirements Collect Whole Blood, one lavender (EDTA) top tube Preferred Volume 1.0 mL Minimum Volume 0.4 mL Transport Refrigerated Rejection Criteria Specimens collected in polymer gel separation tubes (SST or PST) or sent as room temperature. Stability Ambient: 2 days; Refrigerated: 14 days: Frozen (-20°C): 1 month Testing Information Performed Tue, Fri Reported 3-5 days Method LC-MS/MS Referral Lab National Medical Services (3360B) Reference Values Reference Values Interpretation provided. CPT Codes 80332 Last Updated: Thursday, January 5, 2017 03:42:21 AM