METANEPHRINES 24 HOUR URINE

Code
900.2675
Name
METANEPHRINES 24 HOUR URINE
Category
None
Department
Send-Out
Start Date
Expiration Date
Synonyms
CPT Codes
83835
Site
SBMF
Reference Test
29141
ATLAS Test Code

Specimen Information

Type

Urine, 24 hour

Volume

10.0 ml

Transport Info

Refrigerated

Fasting Required?
False
Patient Instructions

Reference Range

Metanephrine: 44-340 µg/day
Normetanephrine: 48-522 µg/day

Methodology

High Performance Liquid Chromatography (HPLC)

Clinical Significance

Diagnosis and follow-up of patients with pheochromocytoma and related neurogenic tumors.

Quantitation of urine normetanephrine and metanephrine, collectively referred to as “metanephrines” is commonly requested in the diagnosis and follow-up of patients with pheochromocytoma and related neurogenic tumors. It has been found that 0.1-0.5% of hypertensive patients may have this type of tumor. Since pheochromocytoma is surgically curable, it is desirable to screen all hypertensive patients and identify any suspected cases for further studies.

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