Catecholamines Fractionated by LC-MS/MS, Urine Free CATU
Method(s) | Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry |
---|---|
Components | Epinephrine, Norepinephrine |
Specimen Required | |
Collect | 24-hour or random urine collection. Refrigerate during collection. |
Transport | Refrigerated. |
Remarks | Thoroughly mix entire collection in one container. Freeze specimen immediately after aliquoting. Do not exceed 4 mL in tubes. Preserved: Transfer 4 mL to ARUP Transport tube with 20 mg Sulfamic Acid. Mix well (Min: 2.5 mL). Alternative: If ARUP tube with Sulfamic Acid is not available, transfer 4 mL (Min: 2.5 mL) to ARUP Transport tube and adjust pH to 2.0-4.0 with 6M HCI. |
Stability | Collection to initiation of testing: Unpreserved - Ambient: Unacceptable; Refrigerated: 1 week; Frozen: Undefined. Preserved - Ambient: Unacceptable, Refrigerated: 1 month, Frozen: 6 months |
Unacceptable Conditions | Room temperature specimens. Specimens with pH greater than 7. |
Schedule | Daily |
Billing Code | 5010074 |
CPTCode | 82384 |
Preferred Specimen Collection Device(s) | |
Reference Interval | |
See Laboratory Report |