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5244: Catecholamines, Fractionated, Random Urine Print View
Epinephrine     mcg/g creat 
Norepinephrine     mcg/g creat 
Calculated Total (E+NE)     mcg/g creat 
Dopamine     mcg/g creat 
Creatinine, Random Urine     mg/dL 

PRIMARY
1 Urine HCL Additive 10 (5) mL   Frozen - 28 Day(s)/Refrigerated - 7 Day(s)/Room Temperature - 7 Day(s)  
ALTERNATE

The three catecholamines (Norepinephrine, epinephrine, and dopamine) are the principal secretory products of neural tissue. Clinically, the measurement of circulating catecholamines is valuable in the diagnosis of catecholamine secreting tumors associated chiefly with hypertension (pheochromocytomas, neuroblastomas, and gangliomas) and with the evaluation of orthostatic hypotension.

Patient Preparation
It is preferable for the patient to be off medications for three days
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 prior to collection.
Instruction
After urine collection, add 6N HCl to maintain a pH below 3. Urine
without preservative is acceptable if pH is below 6 and the sample is
shipped frozen.
Setup Schedule
Monday-Friday

Reported (Analytical Time)
3 days

CPT Codes
82384,82570

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.

Notes
Transport Temperature: Room temperature Reject Criteria: pH >3.0 and received unfrozen Methodology: Ultra Performance Liquid Chromatography, Electrochemical Detection






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