||Tandem Mass Spectrometry
||Tue, Thu, Sat
#ExistCollect>Collect: Green (sodium or lithium heparin). Also acceptable: Plain red.
#ExistSPECIMENPREPARATION>Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube and freeze immediately. (Min: 0.2 mL) Avoid hemolysis.
#ExistSPECTRANSPORT>Storage/Transport Temperature: CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered.
#ExistRemarks>Remarks: Clinical information is needed for appropriate interpretation. Additional required information includes age, gender, diet (eg, TPN therapy), drug therapy, and family history. Biochemical Genetics Patient History Form is available on the ARUP Web site at aruplab.com/patienthistory or by contacting ARUP Client Services.
#ExistConditions>Unacceptable Conditions: Room temperature specimens. Specimens that have been refrigerated for longer than 12 hours.
#ExistStability>Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: 12 hours; Frozen: 1 month (avoid repeated freeze/thaw cycles)