Test Detail
Overview
Interpreting Results

Content created by

Written by
Dr. Shreya Gupta
BDS, MDS - Oral and Maxillofacial Pathology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Carcino Embryonic Antigen

(CEA)
You need to provide
Blood
This test is for
Male, Female
Test Preparation
  1. No special preparation required

Overview


What is CEA?

Your doctor may order a CEA test when you have been diagnosed with colon cancer or other cancers like pancreas, breast, lung, ovarian, medullary thyroid prior to starting cancer treatment and then, if elevated, at regular intervals during and after therapy to detect recurrence. Sometimes, this test is also ordered when cancer is suspected but not confirmed – to aid in its detection.

Why is CEA done?

  1. If you have been diagnosed with colon cancer or other specific types of cancer. It shoold be measured before therapy is initiated and then or regolar basis to evaluate the success of treatment and to detect recurrence 
  2. In cases of suspected colon cancer or lung cancer, it can be used sometimes to diagnose these conditions 

Interpreting CEA results


Interpretations

  • When CEA levels are initially elevated and then decrease to normal after therapy, it means that the cancer has been successfully treated. A rising CEA level is often the first sign of tumor recurrence 
  • Smaller or early stage tumors are associated with normal or only slightly elevated CEA. Larger tumors have high CEA levels 

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