Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  

CATECHOLAMINES, FRACTIONATED, 24-HOUR U(W/O CREAT)

ORDERING INFORMATION:
Geisinger Epic Procedure Code: LAB1955         Geisinger Epic ID: 45922

SPECIMEN COLLECTION
Specimen type:
Aliquot from a 24-hour collection preserved with 6N HCl
Preferred collection container:
Alternate Collection Container:
24-hour urine container (no preservative)
Specimen required:
10 mL aliquot from a 24-hour collection preserved with 6N HCl. Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen. Minimum 5 mL.

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: 30 days. Frozen: 49 days.

TEST DETAILS
Additional information:
Recent surgery, traumatic injury, upright posture, cold, anxiety, pain, clonidine withdrawal, and concurrent acute or chronic illness may produce elevated results.
CPT code(s):
82384
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.
Test includes:
Dopamine, Epinephrine, Norepinephrine, Total Catecholamines (calculated)
Methodology:
Ultra Performance Liquid Chromatography
Electrochemical detection
Kinetic Alkaline Picrate
Synonyms:
Quest test code 4646
CAT24U
Clinical significance:
Fractionated catecholamine measurement is useful in the diagnosis of pheochromocytoma and its differentiation from essential hypertension.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Setup Monday-Friday a.m. Report available next day.    
Performed stat? No
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