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Also reported in: mcg/L, U/L
Your CgA is in the normal range. Note that proton pump inhibitors (PPIs) significantly elevate CgA and this should be accounted for when interpreting results.
Your chromogranin A is undetectable. CgA is stored and released by neuroendocrine cells and tumors. An undetectable level is the best possible baseline result for neuroendocrine tumor surveillance.
No action needed.
Chromogranin A undetectable — no detectable neuroendocrine markerYour CgA is within the normal reference range. This is a reassuring result for neuroendocrine tumor screening. CgA is elevated in carcinoid tumors, pancreatic NETs, pheochromocytoma, and other neuroendocrine malignancies.
No action needed. Continue standard health monitoring.
Chromogranin A within normal reference range — no elevated neuroendocrine markerYour CgA is in the low-normal range. This is a favorable finding for neuroendocrine health.
No action needed.
Chromogranin A: low-normal — favorable baselineYour CgA is in the normal range. Note that proton pump inhibitors (PPIs) significantly elevate CgA and this should be accounted for when interpreting results.
No specific action required. Inform your doctor if you take PPIs, as these must be stopped before accurate CgA testing.
Chromogranin A within reference rangeYour CgA is in the optimal range, which is a very reassuring baseline for neuroendocrine health.
No action needed.
Chromogranin A: optimal — very low neuroendocrine marker levelYour CgA is above the reference range. Mild elevation commonly results from proton pump inhibitor use, chronic atrophic gastritis, kidney failure, liver disease, heart failure, and hypertension. Neuroendocrine tumors must also be considered.
Stop PPIs for at least 2 weeks before retesting if applicable. Discuss with your doctor. If benign causes are excluded, further investigation for neuroendocrine tumor (CT scan, 68Ga-DOTATATE PET) may be needed.
Chromogranin A 93–200 ng/mL — borderline elevated; benign causes common; clinical context importantYour CgA is significantly elevated after excluding common benign causes. At this level, active neuroendocrine tumor is a serious concern. Common NET primary sites include the small intestine, pancreas, and lung.
Seek specialist oncology or endocrinology referral. 68Ga-DOTATATE PET-CT or conventional CT imaging should be arranged to locate any primary NET.
Chromogranin A >200 ng/mL — significantly elevated; neuroendocrine tumor evaluation requiredYour CgA is critically elevated, which is strongly associated with active, often advanced, neuroendocrine malignancy. Very high CgA correlates with significant tumor burden and is associated with poorer prognosis in NET patients.
Seek urgent specialist oncology evaluation immediately. Comprehensive staging and treatment planning must be initiated without delay.
Chromogranin A >500 ng/mL — critically elevated; active neuroendocrine malignancy highly probableUpload your lab report and get your actual values interpreted in plain English — instantly, with no medical training required.