


Chromogranin A (CgA) is a protein found in the neuroendocrine cells of the body, which are part of the nervous system and the endocrine system. These cells help regulate hormone production and the release of neurotransmitters.
Testing for CgA is useful for the diagnosis and monitoring of certain types of cancer, such as neuroendocrine tumors. These tumors can produce hormones, and CgA levels might be elevated in individuals with such tumors.
A CgA test can help assess the presence and activity of neuroendocrine tumors. It is used to aid in diagnosis, monitor tumor growth, and evaluate the effectiveness of treatment.
High levels of CgA may indicate the presence of neuroendocrine tumors or other conditions such as chronic kidney failure, heart disease, and certain hormonal disorders. It can also be elevated in people taking certain medications.
Low levels of CgA are usually not concerning and may indicate the absence of neuroendocrine tumors. However, the interpretation of CgA levels must always be viewed in the context of other diagnostic tests and the patient's clinical situation.
Answers to what people usually want to know.
After ordering we generate a referral letter and email you the instructions. You pick a collection point yourself and book an appointment there. Blood is drawn at the location, processed at the lab, and your result arrives digitally.
Usually very quickly. Collection points typically have slots within a few days, sometimes even same-day. It depends on how busy the location is. For a few specialist analyses we first ship collection materials, which takes a bit longer.
At most collection points yes. Some accept walk-ins. This is clearly indicated per location. You choose the location that works best for you.
Chromogranin A; neuroendocrine marker.



€85.00EUR
That depends on the test. Whether fasting is required, and from what time, is clearly stated in the instructions you receive after ordering. No surprises at the counter.
It varies per analysis: from same-day to a few working days. Standard values often come back quickly; analyses that go to an external lab can take a bit longer. You get an email with a link to your digital result, including a short explanation per value.
We work with 1,000+ collection points across the Netherlands. After ordering you'll see which locations near you are available and you pick where you'd like to go.
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