Catecholamines, Fractionated, Random Urine
Fasting Required: No

Specimen: 10 mL urine

Patient Preparation: It is preferable for the patient to be off medications for a minimum of 18-24 hours prior to collection. However, common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Patient should avoid alcohol, coffee, tea, tobacco and strenuous exercise for 8-12 hours prior to collection.

Includes: Creatinine, Norepinephrine, Epinephrine, Dopamine, and Total Catecholamines (calculated)

Limitations: Recent surgery, traumatic injury, upright posture, cold, anxiety, pain, clonidine withdrawal, and concurrent acute or chronic illness may produce elevated results.

Results: 7-10 business days

Description: Catecholamines are neurotransmitters and include dopamine, norepinephrine, and epinephrine. These proteins help control a variety of functions, including:
• muscle tone
• heart rate
• blood pressure
• glucose (sugar) metabolism

Catecholamines are primarily produced in your adrenal glands. Levels fluctuate in response to physical/emotional stress, outside temperature, blood loss, exercise, low blood sugar, and going from seated to standing, or vice versa.

Methodology: High Performance Liquid Chromatography (HPLC)

Alternative Name(s): Dopamine, Epinephrine, Norepinephrine, Free Catecholamines, plasma and urine, Fractionated Catecholamines

Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.