The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.
The Catecholamines, Fractionated, 24-Hour Urine with C test contains 1 test with 6 biomarkers.
Catecholamines, Fractionated, 24-Hour Urine with Creatinine
Includes: Creatinine, Norepinephrine, Epinephrine, Dopamine, and Total Catecholamines (calculated)
Patient Preparation: It is preferable for the patient to be off medications for three days prior to collection. Common antihypertensives (Diuretics, Ace Inhibitors, Calcium Channel Blockers, Alpha and Beta Blockers) may cause minimal or no interference.
Preferred Specimen(s): 10 mL aliquot from a 24-hour collection preserved with 6N HCI at the start of collection