Test Details & Preparation
Test details and preparation:
- Catecholamines are neurotransmitters that are produced in your adrenal glands.
- High catecholamine levels in your body can indicate the presence of a tumor.
- Catecholamines include dopamine,norepinephrine and epinephrine.
- It may be ordered when a person, especially a relatively young person (younger than age 40) has sudden bursts (paroxysms) of signs and symptoms such as:
- High blood pressure (hypertension), especially when a person has hypertension that is not responding to treatment
- Severe headaches
- Rapid heart rate (palpitations)
- A 24-hour urine sample is needed for the test.The urine samples is collected after the early morning urine to next day morning,and a record of time is kept for 24 hours.
- These tests are affected by certain drugs, foods, and stresses. Certain medication should be stopped before the test.Use of caffeine product such as tea, coffee, chocolate should be stopped.
The normal catecholimes range for different age groups falls between-
- younger than 1 year: 0.0 to 2.5 mcg/24 hours
- 1 year: 0.0 to 3.5 mcg/24 hours
- 2 to 3 years: 0.0 to 6.0 mcg/24 hours
- 4 to 9 years: 0.2 to 10.0 mcg/24 hours
- 10 to 15 years: 0.5 to 20.0 mcg/24 hours
- 16 years or older: 0.0 to 20.0 mcg/24 hours
- younger than 1 year: 0 to 10 mcg/24 hours
- 1 year: 1 to 17 mcg/24 hours
- 2 to 3 years: 4 to 29 mcg/24 hours
- 4 to 6 years: 8 to 45 mcg/24 hours
- 7 to 9 years: 13 to 65 mcg/24 hours
- 10 years or older: 15 to 80 mcg/24 hours
- younger than 1 year: 0 to 85 mcg/24 hours
- 1 year: 10 to 140 mcg/24 hours
- 2 to 3 years: 40 to 260 mcg/24 hours
- 4 years or older: 65 to 400 mcg/24 hours
- High level of catecholamines in urine strongly suggest catecholamine secreting tumors such as Pheochromocytoma(tumor in adrenal gland) and paragangglioma(tumor which occur in somewhere in abdomen but outside adrenal).
- There may be some other reason for high level of catecholamines,so doctor should be consulted for appropriate cause.