• Test Code - PL0602
  • Test Name - 24 hours urinary catecholamine
  • Views - 555 Views
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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
  • Sweating
  • Flushing
  • Rapid heart rate (palpitations)
  • Tremor
  • 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.

Result:


The normal catecholimes range for different age groups falls between-

  • Epinephrine
  • 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
  • Norepinephrine
  • 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
  • Dopamine
  • 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.


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