Is CEA 4.75 ng/mL normal?

Sep 21, 2023 Source: Cainiu Health

Dr. Yang Shuwen

Introduction

Under normal circumstances, CEA refers to carcinoembryonic antigen. A level of 4.75 ng/mL is considered normal. The reference range for carcinoembryonic antigen is 0–5 ng/mL; therefore, a value of 4.75 ng/mL falls within the normal range. If the patient experiences any symptoms or discomfort, it is recommended to seek medical attention at a hospital promptly to avoid delaying diagnosis and treatment.

Under normal circumstances, CEA refers to carcinoembryonic antigen. A level of 4.75 ng/mL is considered within the normal range. The reference interval for carcinoembryonic antigen is 0–5 ng/mL; therefore, a value of 4.75 ng/mL falls within the normal range. The detailed analysis is as follows:

Carcinoembryonic antigen is an acidic glycoprotein with characteristics of human embryonic antigens. It can also exist as a structural membrane protein on the surface of cancer cells and is secreted into surrounding body fluids. It is a common tumor marker, with a normal reference value of 0–5 ng/mL. However, due to differences in assay kits used by various testing laboratories, as well as variations in objective conditions such as temperature and humidity, the normal reference range may slightly fluctuate. Within the standard reference range of 0–5 ng/mL, a value of 4.75 ng/mL is considered normal.

It should be noted that carcinoembryonic antigen levels are only an auxiliary diagnostic tool and cannot be used alone to confirm a diagnosis of cancer. If symptoms or clinical signs are present, further evaluation and diagnosis should be made in conjunction with other tests and medical advice from a physician. Moreover, elevated CEA levels are not solely associated with cancer but may also occur in other conditions such as inflammatory diseases and liver disorders.

If a patient experiences any discomfort or symptoms, it is recommended to seek timely medical attention at a hospital to avoid delays in diagnosis and treatment.

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