Diagnostic Tests

Cancer Antigen - Gi Monoclonal Antibody With Gene Analysis Blood


Cancer Antigen - Gi Monoclonal Antibody With Gene Analysis Blood

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What is this test?

Cancer Antigen-GI Monoclonal Antibody with Gene Analysis Blood test is used to detect whether an individual is having gastrointestinal GI cancer or not.

What is gastrointestinal cancer?

Gastro-intestinal cancer is a term used for the group of cancers that affect the digestive system. This includes cancers of the gallbladder, biliary duct, liver, pancreas, small and large intestine, and anus.

What are CEA, CA 19-9, p53 gene, and Ras gene?

A tumor marker is a substance produced by the body in the presence of cancer or cancer itself can make tumor markers. Some of the tumor markers are specific to one cancer and some are seen in different types of cancers.

Carcinoembryonic antigen CEA is a protein generally produced in the gastrointestinal tissue during fetal development. But, its production is stopped before the birth of a child. So, CEA levels in the blood of healthy adults are very low. The Carcinoembryonic Antigen CEA can be used as tumor markers for stomach, pancreatic, lung, gastric and breast cancers. CEA attaches to the plasma membrane of tumor cells and gets released into the blood.

Carbohydrate antigen 19-9 CA 19-9 is a type of antigen released by the pancreatic cancer cells. It can be used to differentiate cancer and other diseases of the glands.

Ras genes are the genes that encode the proteins that can cause cancer when mutated. These genes regulate the signaling pathways and other interactions.

P53 gene is also known as tumor protein p53, tumor suppressor p53, and phosphoprotein p53. It is important for cells to suppress cancer.

Why this test is performed?

This test is performed to find whether an individual is having gastrointestinal cancer or not. Your doctor may ask to perform this test if you experience any signs and symptoms such as poor appetite, unintentional weight loss, abdominal pain, heartburn, indigestion, vomiting, nausea, sense of fullness of stomach after eating a small meal etc.

This test is recommended by the physician to check the effectiveness of the treatment of gastrointestinal cancer. This also helps the physician to plan the treatment for an individual who is having gastrointestinal cancer.

Pathology Test Parameters: This test includes the following parameters:- CEA, CA 19-9. P53 gene, and the Ras gene.

Also known as Cancer Antigen - GI.

Test Preparation

Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your Cancer Antigen - Gi Monoclonal Antibody With Gene Analysis Blood. Your doctor will give specific instructions depending on your condition on how to prepare for Cancer Antigen - Gi Monoclonal Antibody With Gene Analysis Blood.

No specific preparation is required for this test. However, follow all the instructions given by the healthcare provider.

Understanding your test results

The normal reference range may vary depending on gender, age, health history, etc.

If your test results show high levels of CEA and CA 19-9 than the given normal reference range, it may indicate that the person is most likely to have gastrointestinal GI cancer, and also indicates that the treatment is not working well.

If CEA and CA 19-9 levels are lower or in the normal range, it may indicate that the person is unlikely to have gastrointestinal GI cancer or may indicate that the treatment is working well.

If test results are positive it indicates that p 53 gene, Ras gene are present and indicative of GI cancer.

Based on the test results, your doctor may advise appropriate medical treatments, lifestyle modifications, or further diagnostic tests.

GenderAge groupsValue
UNISEXAll age groups< 3 nanograms/ml
UNISEXAll age groups19-9 0-37 U/ml
UNISEXAll age groupsGene is mutated in positive cases
UNISEXAll age groupsGene is mutated in positive cases
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