Category
SPECIAL CHEMISTRY.
Sub Category
ENDOCRINE; TUMOR MARKER
Synonyms/Aliases
-N/A
Abbreviations
CgA
Type
INDIVIDUAL TEST
Results
RESULTS READY/ REPORTED IN 7-10 WORKING DAYS.
Method
CHROMATOGRAPHY
Temp
FROZEN (PREFERRED). AVOID REFRIGERATION.
Setup
BATCHED.
Components Parameters
NOT APPLICABLE
PRE-ANALYTIC CONSIDERATIONS
Test Ordering Instructions
FILL OUT TEST REQUEST FORM FULLY & LEGIBLY. PROVIDE DETAILED CLINICAL HISTORY.
Patient preparation
NO PREPARATION REQUIRED.
Sample type
EDTA PLASMA
Container/ preservative
EDTA (PURPLE TOP) VACUTAINER
Sample volume
2ML EDTA PLASMA
Rejection criteria
LABELING ISSUE (UNLABELED/ MISLABELED); MISSING REQUEST FORM; MISMATCH BETWEEN REQUEST FORM & SAMPLE DETAILS; MISSING AGE/ GENDER; WRONG SAMPLE TYPE; INSUFFICIENT SAMPLE.
Other Instructions
CENTRIFUGE EDTA VACUTAINER AND ALIQUOT PLASMA. THE SEPARATION VIAL MUST BE LABELED WITH AT LEAST 2 PATIENT IDENTIFIERS AND THE SAMPLE TYPE.
Reference intervals
APPROPRIATE VALUES ARE PROVIDED ON THE REPORT.
Clinical Utility
MONITORING OF NEUROENDOCRINE TUMORS E.G. CARCINOID TUMORS, PHEOCHROMOCYTOMA, PARAGANGLIOMA, NEUROBLASTOMAAMINE & PRECURSOR UPTAKE & DECARBOXYLATION (APUD) TUMORS.
Test Limitations/ Confounders
LEVELS MAY ALSO BE ELEVATED IN RENAL FAILURE, INFLAMMATORY CONDITIONS, PPI THERAPY ETC. RESULTS SHOULD ALWAYS BE CORRELATED WITH CLINICAL FINDINGS & RESULTS OF OTHER DIAGNOSTIC WORK-UP E.G. IMAGING, TISSUE BIOPSY FINDINGS.