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14961: Metanephrines, Fractionated, Lc/ms/ms, Random Urine Print View
Metanephrine     mcg/g creat 
Normetanephrine     mcg/g creat 
Metanephrines, Total     mcg/g creat 
Creatinine, Random Urine     mg/dL 

PRIMARY
1 Urine HCL Additive 5 (1.5) mL   Refrigerated - 8 Day(s)/Room Temperature - 7 Day(s)/Frozen - 30 Day(s)  
ALTERNATE
  Urine   Refrigerated - 8 Day(s)/Frozen - 30 Day(s)/Room Temperature - 7 Day(s)  

Useful in the evaluation of pheochromocytoma

Room temperature stability: 1 week (acidified)
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. Record patients age on test request form and urine
vial.

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.
Setup Schedule
Tuesday-Saturday

Reported (Analytical Time)
3 days

CPT Codes
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
Transport Temperature: Room temperature Methodology: Liquid Chromatography Tandem Mass Spectrometry






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