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10520: Pheochromocytoma Evaluation Print View
Total Volume     mL 
Catecholamines, Total     mcg/24 h 
Catecholamine/Creat Ratio     mcg/g creat 
Metanephrines, Total     mcg/24 h 
Metanephrine/Creat Ratio     mcg/g creat 
Creatinine, 24-Hour Urine     g/24 h 

PRIMARY
1 Urine with HCL 24 hour 14 (5.5) mL   Room Temperature - 8 Hour(s)/Frozen - 30 Day(s)/Refrigerated - 8 Day(s)  
ALTERNATE
  Urine 24 hour   Room Temperature - 8 Hour(s)/Frozen - 30 Day(s)/Refrigerated - 8 Day(s)  

Pheochromocytoma is a tumor of the adrenal gland associated with headaches, cyclic changes in blood pressure, sweating, and other symptoms. Pheochromocytomas produce catecholamines and metanephrine.

Patient Preparation
It is preferable for the patient to be off medications for three days
prior to collection. Patient should avoid tobacco, tea, coffee, for
three days prior to specimen collection. Common antihypertensives
(diuretics, ACE inhibitors, calcium channel blockers, alpha and beta
blockers) cause minimal or no interference. Medications which are
alpha agonists (aldomet), alpha blockers (dibenzyline) should be
avoided 18-24 hours prior to specimen collection.
Instruction
After urine collection, add 25 mL of 6N HCl to maintain a pH below 3.
Urine without preservative is acceptable if pH is below 6 and the
sample is shipped frozen. Record 24-hour urine volume on test
requisition and urine vial. Record patient's age on test requisition
and urine vial.
Setup Schedule
Monday-Friday

Reported (Analytical Time)
3 days

CPT Codes
82382,83835,82570

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
Reject Criteria: Received room temperature

Transport Temperature: Refrigerated

Methodology: Chromatography/Electrochemical Detection, Chromatography/Mass Spectrometry, Colorimetric






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