Abbreviation: CTFU
Specimen Type: Urine-No preservativ
Storage Temperature: Refrigerate
Tubes / Containers: 24Hr Container, No Preservative (1)
Instrument / Location: RPS
Host Code: YCTFU
LOINC: 2161-8, 2162-6, 2218-6, 49256-1, 2668-2
Volume: 30 mL
Minimum Volume: 4 mL
Tab Assignment: RPS Sendouts
Additional Information: Preservation can be enhanced by adjusting the pH to 2-3 by adding an acid such as 6 N HCl. Catecholamines are not stable above pH 7. The pH of such specimens must be adjusted by the addition of acid prior to transport. A pH less than 2 can cause assay interference.