Catecholamines Fractionated, Urine, Random or 24 Hr.

YCTFU

Catecholamines Fractionated, Urine, Random or 24 Hr.

Sterile Urine Container

4 mLs (Min: 2.5 mLs) 24-hour or Random Urine Refrigerated

Thoroughly mix entire collection (24-hour or random) in one container. Transfer a 4 mLs aliquot to a standard transport tube. 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.
Specimen preservation can be extended to 1 month refrigerated by performing one of the following:
Option 1: Transfer a 4 mLs aliquot to an ARUP standard transport tube and adjust pH to 2.0-4.0 with 6M HCl.

Option 2: Transfer a 4 mLs aliquot to an ARUP standard transport tube containing 20 mg sulfamic acid.
If 24 hour Urine sample must include: Collection Start-DateTime, Stop-DateTime and Total Volume.

Specimens preserved with boric acid or acetic acid. Specimens with pH greater than 7.

Unpreserved: Ambient Unacceptable; Refrigerated 1 week; Frozen Undefined Preserved: Ambient Unacceptable; Refrigerated 1 month; Frozen 6 months