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CEA Carcino Embryonic Antigen Test

DNA Labs India | ISO 9001:2015 Certified

CEA Carcino Embryonic Antigen Test

Short Name: CEA Test

Also known as: Carcinoembryonic Antigen Test, CEA Blood Test, CEA Tumor Marker Test, Carcinoembryonic Antigen Serum Test

CEA Carcino Embryonic Antigen Test test available at DNA Labs India for ₹784. Uses Chemiluminescent Microparticle Immunoassay (CMIA) on Serum samples. Results in Results are typically available within 24 to 48 hours through our online portal, email, or WhatsApp.. Free home collection in 300+ cities across India.

Blood TestAdults🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Pasupathy Arumugam

Dr Pasupathy Arumugam

Consultant Pathologist · Reg: 21521

Last reviewed: September 7, 2026

Overview

The primary purpose of the CEA Carcino Embryonic Antigen Test is to serve as a tumor marker for monitoring patients who have been diagnosed with cancer, particularly colorectal cancer. This test helps physicians track the effectiveness of ongoing cancer treatment such as surgery, chemotherapy, or radiation therapy by measuring changes in CEA levels over time. Declining CEA levels during treatment generally indicate a positive response, while rising levels may suggest disease progression or recurrence. The test is also used for post-treatment surveillance to detect early signs of cancer recurrence. Additionally, CEA testing may aid in staging cancer and determining prognosis. However, this test is not intended for cancer screening in the general population and should always be used alongside other clinical and diagnostic assessments.

Test Code
281
CPT Code
82378
ICD Code
Z12.11
Price
₹784
Sample Type
Serum
Result Time
Results are typically available within 24 to 48 hours through our online portal, email, or WhatsApp.
Fasting Required
No
Method
Chemiluminescent Microparticle Immunoassay (CMIA)
Step 1

Sample Collection

Inform your doctor about all medications, supplements, and smoking history. Provide a brief clinical history including any known cancer diagnosis, prior treatments, and recent surgeries. No fasting is required unless specifically instructed by your physician.

Method: Venipuncture

Step 2

Laboratory Analysis

A trained phlebotomist will collect approximately 2 mL of blood from a vein in your arm using a sterile needle and SST (Serum Separator Tube). The procedure typically takes less than 5 minutes and causes minimal discomfort.

Step 3

Report Delivery

Apply gentle pressure to the puncture site with cotton or a bandage for a few minutes. You may resume normal activities immediately. Mild bruising at the site is normal and resolves within a few days.

Timeline: Results are typically available within 24 to 48 hours through our online portal, email, or WhatsApp.

Patient Instructions

1
Before the Test:No special preparation is required. Inform your physician about your medical history, current medications, and smoking habits. Bring any previous CEA test reports for comparison.
2
During the Test:A small blood sample (approximately 2 mL) will be drawn from a vein in your arm using a sterile needle. The entire process takes about 5 minutes with minimal discomfort.
3
After the Test:You can resume your normal activities immediately. Mild soreness or bruising at the puncture site may occur and typically resolves on its own within a day or two.

About This Test

Who Should Get This Test

The primary purpose of the CEA Carcino Embryonic Antigen Test is to serve as a tumor marker for monitoring patients who have been diagnosed with cancer, particularly colorectal cancer. This test helps physicians track the effectiveness of ongoing cancer treatment such as surgery, chemotherapy, or radiation therapy by measuring changes in CEA levels over time. Declining CEA levels during treatment generally indicate a positive response, while rising levels may suggest disease progression or recurrence. The test is also used for post-treatment surveillance to detect early signs of cancer recurrence. Additionally, CEA testing may aid in staging cancer and determining prognosis. However, this test is not intended for cancer screening in the general population and should always be used alongside other clinical and diagnostic assessments.

How to Prepare

  • No fasting required unless advised by your physician
  • Provide a brief clinical history at the time of sample collection
  • Inform the phlebotomist about your smoking status
  • Disclose all current medications and ongoing treatments
  • Stay hydrated before sample collection
  • Avoid strenuous exercise immediately before the test

Doctor's Notes

Reviewed by — MBBS, MD (Pathology) · Reg. No. 21521

"The CEA test is a valuable tumor marker primarily used for monitoring patients with colorectal cancer during and after treatment. It should never be used as a standalone diagnostic tool. A rising CEA level may suggest cancer recurrence, while declining levels during treatment often indicate a positive response. Always interpret CEA results alongside imaging studies, biopsy findings, and the overall clinical picture. Smokers may have naturally higher baseline CEA levels, which must be considered during interpretation."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeSerum
Sample Volume2 mL (1 mL minimum)
ContainerSST (Serum Separator Tube)
Collection MethodVenipuncture

Sample Stability

Room Temperature (25°C)
Refrigerated (2-8°C)
Frozen (-20°C)
Sample Rejection Criteria:
  • Hemolyzed sample
  • Insufficient sample volume (less than 1 mL)
  • Improperly labeled sample
  • Sample collected in incorrect container (not SST)
  • Sample exceeding stability limits

Understanding Your Results

CEA levels are measured in nanograms per milliliter (ng/mL). Results should be interpreted by a qualified physician in the context of the patient's clinical history, cancer type, treatment stage, and other diagnostic findings. Serial measurements are more valuable than single readings for monitoring treatment response and detecting recurrence.
📊

Normal range. No significant elevation detected. Continue routine follow-up as advised by your physician.

Status: Normal

Range: < 2.5 ng/mL (non-smokers) / < 5.0 ng/mL (smokers)

📊

Mildly elevated. May be seen in non-cancerous conditions such as smoking, liver disease, or inflammatory bowel disease. May also indicate early-stage cancer. Clinical correlation and repeat testing recommended.

Status: Borderline

Range: 2.5 - 10 ng/mL

📊

Moderately elevated. Often associated with localized cancer. Further investigation with imaging and biopsy is strongly recommended.

Status: Elevated

Range: 10 - 20 ng/mL

📊

Significantly elevated. May indicate metastatic or advanced cancer. Urgent clinical evaluation and comprehensive diagnostic workup required.

Status: High

Range: > 20 ng/mL

⚠️ When to Consult a Doctor:

Consult your oncologist or healthcare provider if your CEA levels are elevated, show a rising trend over serial measurements, or if you experience symptoms such as unexplained weight loss, persistent fatigue, changes in bowel habits, blood in stool, chronic abdominal pain, or any other symptoms suggestive of cancer. A rising CEA level during follow-up may indicate cancer recurrence and requires immediate medical attention.

Limitations

  • ⚠CEA is not recommended as a standalone screening test for cancer in asymptomatic individuals
  • ⚠Elevated CEA levels do not confirm cancer as they may occur in benign conditions
  • ⚠Normal CEA levels do not completely rule out the presence of cancer
  • ⚠CEA is not specific to a single type of cancer and may be elevated in multiple malignancies
  • ⚠Results must be interpreted in conjunction with clinical findings, imaging, and biopsy results

Risks & Considerations

  • ●Minor bruising or soreness at the blood draw site
  • ●Slight risk of infection at the puncture site
  • ●Rarely, fainting or dizziness during or after blood draw
  • ●Possible anxiety related to test results

Interfering Factors

  • ●Cigarette smoking can significantly elevate baseline CEA levels
  • ●Non-cancerous conditions such as liver cirrhosis, pancreatitis, inflammatory bowel disease, and COPD may raise CEA levels
  • ●Certain medications and treatments may affect CEA readings
  • ●Benign gastrointestinal conditions including diverticulitis and peptic ulcer disease
  • ●Recent surgical procedures or infections may transiently elevate CEA levels

Compare With Similar Tests

TestCEA Carcino Embryonic Antigen TestCA 19-9 TestAFP (Alpha-Fetoprotein) TestPSA (Prostate-Specific Antigen) Test
ComparisonCEA Carcino Embryonic Antigen Test

Frequently Asked Questions

What is a CEA Carcino Embryonic Antigen Test?
The CEA Carcino Embryonic Antigen Test is a blood test that measures the level of Carcinoembryonic Antigen (CEA), a glycoprotein, in the bloodstream. It is primarily used as a tumor marker to monitor cancer treatment effectiveness, detect recurrence, and assess disease progression, particularly in colorectal cancer patients.
Why is the CEA test ordered by doctors?
Doctors order the CEA test to monitor patients with known cancers (especially colorectal cancer), evaluate treatment response to chemotherapy, radiation, or surgery, detect cancer recurrence during follow-up, and assist in cancer staging. It is not used for general cancer screening in asymptomatic individuals.
What does a high CEA level mean?
A high CEA level may indicate the presence of cancer, most commonly colorectal cancer. However, elevated CEA can also occur in non-cancerous conditions such as liver cirrhosis, pancreatitis, inflammatory bowel disease, chronic obstructive pulmonary disease (COPD), and in individuals who smoke. Clinical correlation with other tests is essential.
Is fasting required for the CEA blood test?
No, fasting is not required for the CEA test. You can eat and drink normally before the test. However, it is important to provide a brief clinical history and inform your physician about your smoking status and any medications you are taking.
What is the normal range for CEA?
The normal reference range for CEA is less than 2.5 ng/mL for non-smokers and less than 5.0 ng/mL for smokers. Values above these ranges may require further clinical evaluation. It is important to interpret results in the context of your overall clinical situation.
What is the cost of the CEA test in India?
The CEA Carcino Embryonic Antigen Test cost at DNA Labs India is Rs 783.9. This price includes free home sample collection across 200+ cities in India. The cost is inclusive of GST and lab analysis, with reports delivered online within 24 to 48 hours.
Can smoking affect CEA test results?
Yes, smoking can significantly affect CEA test results. Cigarette smokers tend to have higher baseline CEA levels compared to non-smokers. The normal reference range for smokers is less than 5.0 ng/mL compared to less than 2.5 ng/mL for non-smokers. Always inform your doctor about your smoking habits.
How long does it take to get CEA test results?
At DNA Labs India, CEA test results are typically available within 24 to 48 hours. Reports can be accessed through our secure online portal, email, or WhatsApp for your convenience.
Is the CEA test used to diagnose cancer?
No, the CEA test alone is not used to diagnose cancer. It is a tumor marker that helps monitor known cancers, track treatment response, and detect recurrence. A definitive cancer diagnosis requires additional investigations including biopsy, imaging studies (CT, MRI, PET scan), and other laboratory tests.
What other tests are commonly done along with the CEA test?
Common tests performed alongside CEA include the CA 19-9 test, AFP test, Complete Blood Count (CBC), Liver Function Tests (LFT), and imaging studies such as CT scan, MRI, or PET scan. Your oncologist will recommend the appropriate test panel based on your specific clinical situation.
Is home sample collection available for the CEA test?
Yes, DNA Labs India offers free home sample collection for the CEA test across 200+ cities in India, including Mumbai, Delhi, Bangalore, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, and many more. You can book online and our trained phlebotomist will visit your home at a convenient time.
How often should the CEA test be repeated during cancer treatment?
The frequency of CEA testing depends on your cancer type, stage, and treatment plan. Your oncologist will determine the appropriate schedule. Typically, CEA levels are measured before treatment starts, periodically during treatment, and at regular intervals during follow-up to monitor for recurrence.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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