Table of Contents
What is a normal level for chromogranin A?
There is a normal level of Chromogranin A in the blood, and the range currently is less than 39ng/l.. Abnormal levels can vary form forty to the thousands. The sensitivity of the test for CgA is about 80%, this means that 80% of the time abnormal levels are correctly associated with disease.
What is a high chromogranin A level?
The CgA is described as a prognostic marker for GEP-NET: high levels correlate with shorter survival and liver cancer burden. Chromogranin A concentrations and sensitivity depend mainly on the spread of cancer.
What is positive chromogranin?
Adrenal system tumors that stain positive for chromogranin A include pheochromocytoma. Lung tumors include small cell cancer. Elevation in serum CgA correlates with the size, extension and the histopathology of the neuroendocrine tumors; it is usually higher in large, metastatic, and well-differentiated tumors.
What does chromogranin A measure?
The chromogranin A (CgA) test is used as a tumor marker. It may be ordered alone or in combination with a 5-HIAA test to help diagnose carcinoid tumors. CgA may also be used to detect the presence of other tumors arising from neuroendocrine cells.
Why would chromogranin levels be high?
From what my GI doctor has told me that the Chromogranin A Level can be high if you take proton pump inhibitors (meds like Prilosec, etc.). Also, liver, kidney, or heart problems can also raise the CgA levels.
Does chromogranin A need to be fasting?
These types of tests measure the amount of gastrin, sugar, VIP, or somatostatin in the blood. Patients may need to fast for at least 8 hours for these tests.
Does chromogranin a need to be fasting?
Is chromogranin A fasting blood test?
What foods affect chromogranin A test?
You will want to avoid foods that contain high levels of serotonin, such as some nuts, bananas, pineapples and tomatoes, especially before having a 5-HIAA urine test. Avoid foods that contain high amounts of mines, nitrogen-containing organic compounds, as they can trigger the release of serotonin and other hormones.
What blood test shows neuroendocrine tumor?
Chromogranin (CgA test) The chromogranin A (CgA) test measures the amount of CgA in the blood. CgA is a protein that many neuroendocrine cells produce.