Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

METANEPHRINES, FRACTIONATED 24 HR URINE

ORDERING INFORMATION:
Sunquest Test Code:
META24      Geisinger Epic Procedure Code: META24         Geisinger Epic ID: 45918

SPECIMEN COLLECTION
Specimen type:
Preserved urine from 24-hour collection
Preferred collection container:
Alternate Collection Container:
24-hour urine container (no preservative)
Specimen required:
5 mL preserved urine from a 24-hour collection OR 5 mL frozen preserved 24-hour urine, minimum 1.5 mL
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.

SPECIMEN PROCESSING
Specimen processing instructions:
Lab personnel (to be determined per site) will test the pH of the urines and adjust to less than 3.0 using 6N HCl before Referred Testing ships the specimen. Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen. Record 24-hour urine volume and patient's age on test request form and urine vial. 
Transport temperature:
Acidified (preserved) urine: Room temperature or refrigerated. Unpreserved urine: Frozen.
Specimen stability:
Room temperature: 7 days. Refrigerated: 8 days. Frozen: 30 days.

TEST DETAILS
CPT code(s):
83835
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Methodology:
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Synonyms:
Quest code 14962
Clinical significance:
Useful in the evaluation of pheochromocytoma.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Monday-Saturday, report available 2 days    
Performed stat? No
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