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Immunophenotyping by Flow Cytometry CD79a Test

DNA Labs India | ISO 9001:2015 Certified

Immunophenotyping by Flow Cytometry CD79a Test

Short Name: CD79a Flow Cytometry Test

Also known as: CD79a Immunophenotyping by Flow Cytometry, Flow Cytometry CD79a Test, B-Cell CD79a Marker Test

Immunophenotyping by Flow Cytometry CD79a Test test available at DNA Labs India for ₹3,500. Uses Flow Cytometry on Whole blood / Bone marrow samples. Results in Sample collection daily by 9 am; report same day.. Free home collection in 300+ cities across India.

Oncologist, HematologistAll Age Groups🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Pasupathy Arumugam

Dr Pasupathy Arumugam

Consultant Pathologist · Reg: 21521

Last reviewed: September 7, 2026

Overview

This test helps identify the type of blood cancer by detecting CD79a expression on B-lymphoid cells.

Test Code
3494
Price
₹3,500
Sample Type
Whole blood / Bone marrow
Result Time
Sample collection daily by 9 am; report same day.
Fasting Required
No
Method
Flow Cytometry
Step 1

Sample Collection

Provide a brief clinical history, date, and time on the test request form. No fasting is required for blood collection.

Method: Venipuncture for whole blood; bone marrow collection by clinician under aseptic precautions.

Step 2

Laboratory Analysis

For blood, standard venipuncture is performed. For bone marrow, collection is performed by a clinician under aseptic precautions.

Step 3

Report Delivery

Keep samples at room temperature 18-22 degrees Celsius and ship immediately. Do not refrigerate or freeze.

Timeline: Sample collection daily by 9 am; report same day.

Patient Instructions

1
Before the Test:Provide a brief clinical history. No fasting is required.
2
During the Test:Blood sample collection by venipuncture; bone marrow collection may be performed by a clinician.
3
After the Test:Samples must be kept at room temperature and transported immediately. Do not refrigerate or freeze.

About This Test

Who Should Get This Test

This test helps identify the type of blood cancer by detecting CD79a expression on B-lymphoid cells.

How to Prepare

  • Collect whole blood in Lavender Top EDTA and Green Top Sodium Heparin tubes as specified.
  • For bone marrow, collect 2 mL in a Green Top Sodium Heparin tube.
  • Specify time, date, and clinical details on the test request form.
  • Ship immediately at 18-22 degrees Celsius. Do not refrigerate or freeze.

Doctor's Notes

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

"CD79a is a B-cell lineage marker. Flow cytometric immunophenotyping is essential for accurate classification of acute leukemias and lymphomas. This test should be interpreted with morphological and clinical findings."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeWhole blood / Bone marrow
Sample Volume3 mL (2 mL min.) whole blood in EDTA; 3 mL (2 mL min.) whole blood in sodium heparin OR 2 mL (1 mL min.) bone marrow in sodium heparin.
ContainerLavender Top (EDTA) and Green Top (Sodium Heparin) tubes; Green Top (Sodium Heparin) for bone marrow.
Collection MethodVenipuncture for whole blood; bone marrow collection by clinician under aseptic precautions.

Sample Stability

Room temperature (18-22 degrees Celsius): 24 hours
Refrigerated: Not acceptable
Frozen: Not acceptable
Sample Rejection Criteria:
  • Refrigerated or frozen samples
  • Clotted or hemolyzed samples
  • Insufficient sample volume
  • Missing clinical details on request form

Understanding Your Results

CD79a expression is interpreted by a hematopathologist in the context of other flow cytometry markers, morphological findings, and clinical history.
CD79a positivity indicates B-lymphocyte lineage; absence or aberrant expression may suggest an abnormal B-cell population.
Results are interpreted in combination with cytomorphology and a broader flow cytometry panel.
Final diagnosis and classification should be correlated with clinical and laboratory findings by a hematopathologist or oncologist.
⚠️ When to Consult a Doctor:

Consult an oncologist or hematologist if you have unexplained fever, weight loss, night sweats, lymph node swelling, bone pain, easy bleeding, or abnormal blood counts.

Limitations

  • ⚠Flow cytometry interpretation is operator-dependent and antibody-panel dependent
  • ⚠CD79a alone cannot establish a diagnosis and must be combined with morphology and other markers
  • ⚠Low tumor burden may limit sensitivity

Risks & Considerations

  • ●Blood collection may cause mild pain or bruising
  • ●Bone marrow collection may cause temporary soreness
  • ●Small risk of bleeding or infection at bone marrow collection site

Interfering Factors

  • ●Incorrect sample handling, refrigeration, or freezing may affect cell viability and antigen expression
  • ●Recent chemotherapy or immunotherapy may alter marker expression
  • ●Clotted or hemolyzed samples

Frequently Asked Questions

What is Immunophenotyping by Flow Cytometry CD79a test?
It is a flow cytometry test that detects CD79a, a B-cell marker, on cells from blood or bone marrow to help identify and classify blood cancers such as leukemia and lymphoma.
Why is CD79a testing done?
CD79a helps determine whether malignant cells are of B-lymphocyte origin, which is essential for accurate diagnosis, classification, and treatment planning.
What sample is required for this test?
Whole blood is collected in EDTA and sodium heparin tubes, or bone marrow in a sodium heparin tube. The sample must be shipped immediately at 18-22 degrees Celsius and not refrigerated or frozen.
Is fasting required before the CD79a test?
No fasting is required. You should provide a brief clinical history as indicated in the pre-test information.
How is the CD79a test performed?
The sample is stained with fluorescently labeled antibodies and analyzed using a flow cytometer to evaluate CD79a expression on the cells.
What is the cost of the Immunophenotyping by Flow Cytometry CD79a test?
The test cost is approximately Rs 3500 at DNA Labs India across India.
When will I get my report?
Samples are received by 9 am and the report is generally delivered the same day.
What does a positive CD79a result mean?
CD79a positivity indicates B-cell lineage. The result is interpreted together with other flow cytometry markers and clinical findings by a pathologist.
Is bone marrow collection always required?
No, whole blood may be sufficient in some cases. Bone marrow may be requested by the doctor if needed for diagnostic evaluation.
What are the risks of sample collection?
Blood collection may cause mild pain or bruising. Bone marrow aspiration may cause temporary soreness and has a small risk of bleeding or infection.
Can I book this test online with home collection?
Yes, DNA Labs India offers free home sample collection for online bookings for this test.
How should the sample be transported?
Ship immediately at 18-22 degrees Celsius. Do not refrigerate or freeze. Specify time, date, and clinical details on the test request form.
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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For Hospitals & Clinics

Reference Laboratory Services

We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

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