A Chromogranin Test is a blood test that measures the levels of chromogranin A (CgA) in your blood. CgA is a protein that is produced by certain cells in your body, including neuroendocrine cells. These cells are found in various tissues throughout your body, including your adrenal glands, pancreas, and gastrointestinal tract.
Chromogranin tests are used to help diagnose certain conditions, including:
-Carcinoid tumors: These are slow-growing tumors that can develop in the digestive system, lungs, or other parts of the body. Carcinoid tumors secrete high levels of chromogranin, which can be detected with this test.
-Pheochromocytoma: This is a tumor of the adrenal gland that produces excess hormones. Pheochromocytomas are usually benign (noncancerous), but can be malignant (cancerous). Chromogranin levels are often elevated in people with pheochromocytoma.
-Neuroendocrine tumors: These tumors can develop in various parts of the body and secrete hormones. Neuroendocrine tumors can be benign or malignant.
The normal range for CgA levels is 0 to 5 nanograms per milliliter (ng/mL). If your test results are above the normal range, it could be a sign that you have a neuroendocrine tumor.
The best way to lower your CgA level is to treat the underlying cause. If you have cancer, treatment may include surgery, radiation therapy, and/or chemotherapy.
The Chromogranin Test is a blood test and is generally considered safe.
Before having a chromogranin test, tell your doctor if you have ever had an allergic reaction to a contrast agent. Also, let your doctor know if you have kidney disease or are pregnant or breastfeeding.
You should also fast for at least 8 hours before the test. This means no food or drink, not even water. Your doctor will give you specific instructions on how to prepare for the test.
The Chromogranin Test does not require fasting.
Yes, home sample collection is available for Chromogranin Test. One can opt for home collection while booking a test through Max Lab.
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