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Geisinger Medical Laboratories Test Catalog
CATECHOLAMINES, FRACTIONATED, 24-HOUR U(W/O CREAT) |
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ORDERING INFORMATION: |
Geisinger Epic Procedure Code: LAB1955 Geisinger Epic ID: 45922 | |
SPECIMEN COLLECTION |
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Specimen type: |
Aliquot from a 24-hour collection preserved with 6N HCl | |
Preferred collection container: |
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Specimen required: |
10 mL aliquot from a 24-hour collection preserved with 6N HCl. Minimum 5 mL. | |
| SPECIMEN PROCESSING |
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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. 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. | |
Specimen stability: |
Room temperature: 7 days. Refrigerated: 30 days. Frozen: 49 days. | |
TEST DETAILS |
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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 |
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Synonyms: |
Quest test code 4646 CAT24U
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Clinical significance: |
Fractionated catecholamine measurement is useful in the diagnosis of pheochromocytoma and its differentiation from essential hypertension. | |