CATECHOLAMINES, FRACTIONATED 24 HOUR URINE
Marquette General Health System
HLAB/HOL Code |
CATU | |
MGH LIS Test No |
606 | |
Schedule |
Tuesday - Saturday | |
Testing Time |
2-4 Days | |
Testing Lab |
Quest Valencia | |
QORR Test Code |
CATU | |
Type |
Urine - 24 hr collection | |
Volume |
30.0 (15.0) mL aliqout | |
Temperature |
Frozen - 2 Month(s),Refrigerated - 7 Day(s) | |
Preservative |
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Collection Info |
If possible, patient should discontinue all drugs at least 1 week prior to collection. Medications known to interfere with this assay include: Alpha-methyldopa (Aldomet), Isoproterenol, Labetalol, Mandelamine, Metaclopramide, Acetaminophen (high concentrations only), Cimetidine, and Catecholamine-containing drugs, MAO inhibitors, diuretics, vasodilators. Other interfering substances include smoking and drinking tea within 4 hours of collecting specimen. 1. Refrigerate during and after collection. 2. Record the 24hr total volume on the requesition form or shipping manifest. 3. Store and ship refrigerated. |
|
Clinical Utilities
Evaluate hypertension, especially if paroxysmal; evaluate orthostatic hypotension; diagnose pheochromocytoma; preoperative evaluation of suspected childhood adrenal neoplasms (i.e., neuroblastoma); evaluate possible multiple endocrine adenomatosis. Slightly elevated concentrations (100-200 ug/24 hr) of urinary free catecholamines are consistent with essential hypertension; elevated concentrations (>200 ug/24 hr) are suggestive of pheochromocytoma. Further confirmation of elevated urinary catecholamines can be obtained by determination of urinary metanephrines.
CPT Codes
82384
The CPT codes provided are based on AMA guidelines
and are for informational purposes only. CPT coding is the
sole responsibility of the billing party. Please direct any questions
regarding coding to the payer being billed.
Reference Range
Catecholamines Total (E+NE) 24 hr Ur < 100 ug/24hr
Epinephrine 24 hr Urine < 20 ug/24hr
Norepinephrine 24 hr Urine < 80 ug/24hr
Dopamine 24 hr Urine < 500 ug/24hr
Component Information Name Method CPT Code Units Name Method CPT Code Units Name Method CPT Code Units Name Method CPT Code Units Name Method CPT Code Units Additional Comments Questions or Comments email support@mgh.org
Reference Lab Home Page
TOTAL (E PLUS NE)
HPLC
82384
mcg/24hr
Ref Range
Less than 100
Reflex Reason
EPINEPHRINE
HPLC
mcg/24hr
Ref Range
Less than 20
Reflex Reason
NOREPINEPHRINE
HPLC
mcg/24hr
Ref Range
Less than 80
Reflex Reason
DOPAMINE
HPLC
mcg/24hr
Ref Range
Less than 500
Reflex Reason
Collection Notes
TOTAL URINE VOLUME
mL
Ref Range
Reflex Reason
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