Laboratory Test Detail

Last Updated: January 15, 2019 @ 10:13 am

91049

Catecholamines, Urine

Specimen:Collect:
  • Timed Urine in Timed Urine Container

Also Acceptable:
  • Random Urine in Sterile Specimen Container
Submit:
  • 5 mL (Min:3 mL) Aliquot(s) Timed Urine in Sterile Specimen Container. Submit Refrigerated.

Also Acceptable:
  • 5 mL (Min:3 mL) Random Urine in Sterile Specimen Container. Submit Refrigerated.
Special Handling:
  • 24 HR Urine Collection Preferred
  • Keep Specimen Refrigerated During Collection
  • State Collection Time
  • State Volume
  • Patient Preparation: Drugs and medications may affect results and should be discontinued for at least 72 hours prior to specimen collection, if possible.
    Specimen Preparation: Thoroughly mix entire collection (24-hour or Random) in one container. Transfer a 4 mL aliquot to an 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 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 Standard Transport Tube containing 20 mg sulfamic acid. (Min: 2.5 mL).
Rejection Criteria:
  • Room temperature specimens. Specimens preserved with boric acid or acetic acid. Specimens with pH greater than 7.
Stability:Ambient: Unacceptable; Refrigerated: 1 Month(s); Frozen: 6 Month(s); Incubated: Unacceptable
Methodology:
  • Quantitative Liquid Chromatography-Tandem Mass Spectrometry
Performed:Sun-Sat
Reported:2-5 Day(s)
CPT Codes:
  • 82384
Interpretive Data:Please see report for interpretive data.
Components:
  • 93008 - CREAT, UR
  • 93009 - CREATININE
  • 93177 - INTERPRETATION
  • 93193 - DOPAMINE
  • 93194 - NOREPINEPHRINE
  • 93195 - EPINEPHRINE
  • 93388 - URINE VOLUME
  • 93518 - HOURS COLLECTED
  • 93604 - DOPAMINE
  • 93605 - NOREPINEPHRINE
  • 93606 - EPINEPHRINE
  • 90205 - EPINEPHRINE
  • 90206 - NOREPINEPHRINE
  • 90207 - DOPAMINE
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