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14962: Metanephrines, Fractionated, Lc/ms/ms, 24-hour Urine Print View
Total Volume     mL 
Metanephrine     mcg/24 h 
Normetanephrine     mcg/24 h 
Metanephrines, Total     mcg/24 h 

PRIMARY
1 Urine with HCL 24 hour 5 (1.5) mL   Room Temperature - 7 Day(s)/Refrigerated - 8 Day(s)/Frozen - 30 Day(s)  
ALTERNATE
  Urine 24 hour   Room Temperature - 7 Day(s)/Refrigerated - 8 Day(s)/Frozen - 30 Day(s)  

st is useful in the evaluation of pheochromocytoma.

After urine collection, add 25 mL 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 request
form and urine vial. Record patients age on test request form 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 Code
83835

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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