Catecholamines Fractionated by LC-MS/MS, Urine Free
| CPT Code(s): | 82384 |
| Specimen Required: | Patient Preparation:Drugs and medications may affect results and should be discontinued for at least 72 hours prior to specimen collection, if possible. Collect:24-hour or random urine. Refrigerate 24-hour specimen during collection. Specimen Preparation:Thoroughly mix entire collection (24-hour or Random) in one container. Transfer a 4 mL aliquot to an RDL Standard Transport Tube. (Min: 2.5 mL) Catecholamines are not stable above pH 7. The pH of such specimens must be adjusted by the addition of 6M HCl acid or sulfamic acid prior to transport. A pH less than 2 can cause assay interference. Record total volume and collection time interval on transport tube and test request form.Specimen preservation can be extended to 1 month refrigerated by performing one of the following:Option 1: Transfer a 4 mL aliquot (Min: 2.5 mL) to an RDL Standard Transport Tube. Adjust pH to 2.0-4.0 with 6M HCl.Option 2: Transfer a 4 mL aliquot (Min: 2.5 mL) to an RDL Standard Transport Tube containing 20 mg sulfamic acid (RDL Supply #48098), available online through eSupply using RDL Connect™or contact RDL Client Services at (888) 431-7474. (Min: 2.5 mL). Storage/Transport Temperature:Refrigerated. Also acceptable: Frozen. Stability:Ambient: Unacceptable; Refrigerated: 1 week (unpreserved), 1 month (preserved); Frozen: 6 months (preserved) |
| New York DOH Approval Status: | This test is New York DOH approved. |
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