GENE XPERT TB & RIFAMPICIN RESISTANCE*

The GeneXpert TB test is a modern molecular diagnostic test used to determine Mycobacterium tuberculosis (TB bacteria) quickly and accurately. Unlike traditional sputum microscopy, which has many drawbacks, this test uses advanced PCR technology to identify TB DNA and drug resistance within a few hours.

The GeneXpert test is an important tool for the identification of tuberculosis to those patients who have sneezing, sudden weight loss, fever or drug resistant problem. As India is among the developing nations where TB is a great burden to healthcare, the government has launched various health schemes to end TB in India before 2030 which is the sustainable development goal to eliminate it. Early detection helps to prevent the spread of TB and makes things easier for treatment of TB patients. The price of doing this test is around INR 2,000 to INR 3400.

What is the GeneXpert TB Test?

The GeneXpert test or CB NAAT test (also called CBNAAT – Cartridge Based Nucleic Acid Amplification Test) is a rapid molecular test that:

• Detects TB bacteria directly from sputum
• Identifies rifampicin drug resistance
• Provides results within 2–24 hours
• Higher accuracy than smear microscopy

Because this test is done very quickly and its precision is very high, many doctors suggest GeneXpert test for patients to confirm whether they have TB or not.

Why is the GeneXpert TB Test Done?

• Early TB Diagnosis
• Detect Drug-Resistant TB
• Screening in High-Risk Patients
• Pediatric TB Detection

Doctors recommend this test for:

• People with HIV
• Diabetics
• Immunocompromised patients
• Close contacts of TB patients

What is the GeneXpert TB Test Procedure?

The procedure is simple and safe:

1. A sputum sample (or other specimen) is collected.
2. The sample is placed into a special GeneXpert cartridge.
3. The cartridge is inserted into the GeneXpert machine.
4. Automated molecular analysis detects TB DNA and drug resistance.
5. Reports are usually available the same day or within 24 hours.

No fasting or special preparation is required.

How to interpret reports of GeneXpert TB Test?

What are the benefits of the GeneXpert TB Test?

• Rapid TB detection
• Identifies drug resistance early
• Highly sensitive
• Highly specific
• Useful for pulmonary and extrapulmonary TB
• Helps to start treatment sooner and prevent spread

Who Should Get the GeneXpert Test?

Doctors recommend it for:

• Persistent cough lasting for more days
• Fever
• Night sweats
• Unexplained weight loss
• Suspected MDR-TB cases
• HIV-positive individuals
• Children suspected of TB
• Close contacts of TB patients

Why Choose City Imaging in Delhi?

Patients choose City Imaging and Clinical Labs because of:

• Advanced molecular diagnostic technology
• Experienced microbiology specialists
• Accurate, fast reporting
• Affordable TB testing packages
• Convenient location and sample collection services in Delhi

What is the CB NAAT test or GeneXpert TB test price in Delhi?

The CB NAAT test or GeneXpert TB test price in Delhi is around INR 2,000 to INR 3400. The cost can vary at different labs and locations and also depends on the diagnostic centre, whether you are doing it in a government or private diagnostic centre. . For affordable and transparent pricing, contact City Imaging today.

Which GeneXpert TB test centre is near me in Delhi?

The GeneXpert TB test or CB NAAT test centre near me in Delhi is City Imaging, which has world class medical equipment and renowned professionals which will listen to your each query carefully and provide better solutions to your medical problems. They do tests at affordable rates and give special discounts to needy ones. This testing centre for GeneXpert TB test is accredited from Government institutions like NABL and NABH and has a vast expertise in the diagnostic field with highly experienced doctors.

Frequently Asked Questions (FAQ’s)

How fast is the GeneXpert TB test done?

Results are typically available within the same day or 24 hours.

Is the test more accurate than sputum microscopy?

Yes, GeneXpert TB test is more accurate, sensitive than sputum microscopy and determines TB if bacteria present is low in quantity.

Can it detect drug-resistant TB?

Yes, it detects rifampicin resistance which is a vital marker of MDR-TB.

Is the GeneXpert TB test supported by WHO?

Yes, it is widely supported by WHO for rapid TB diagnosis worldwide because of its accuracy and reliability.

How many samples are needed for the GeneXpert TB test?

Commonly, 1–3 sputum samples are collected for accurate results.

Is it always correct if the GeneXpert TB test comes negative?

No, we may need additional tests for confirmation if symptoms continue.

Is the Genexpert TB test painful?

No, it only requires sputum collection which is not painful and does not cause any discomfort just like in blood test.

How much time after we get reports?

Reports are typically available within the same day or in some cases after 24 hours.

Can Genexpert TB detect cancer?

Genexpert TB cannot confirm cancer, it only detects TB. For cancer detection you need to do other tests .

Is fasting required for a GeneXpert TB test?

No, GeneXpert TB test can be done without fasting, but you must consult your doctor before doing this test.

How often should this GeneXpert TB test be done?

It depends on doctor advice and patient health for doing the GeneXpert TB test. But mostly recommend to those patients who have symptoms.

What if my GeneXpert TB reports come back negative?

There is no need to worry, and do routine checkups if symptoms may appear again.

How soon will I get my results?

Most reports in many labs are available within 24 hours but it also depends on your slot.

What if GeneXpert TB is positive?

It usually indicates that you have TB and complete results can confirm severity of disease.

Where can I book a GeneXpert TB test near me?

You can book your test at City Imaging for reliable and affordable diagnostic services.

What does GeneXpert mean in the GeneXpert TB test?

GeneXpert helps to examine DNA of viruses or bacteria fast.

Can TB spread from an infectious person?

Yes, TB is a highly spreadable disease it spreads by air and can also transfer from person to person through contact if an infectious person has an active infection.

How many days should a patient be isolated if they get TB?

Patients should remain alone for half or one month if active, infectious TB is present. Patients also need to cover their mouth when coughing or sneezing and wash hands frequently.

What are other names of GeneXpert TB tests?

It is also called CB NAAT, CBNAAT, GeneXpert MTB.

Is GeneXpert TB test compulsory during pregnancy?

It is not an essential test but a doctor may recommend this test if symptoms may appear.

Can TB infections be treated?

Yes, TB is treatable if determined early which makes things easy for doctors to cure patients.

Is hospitalisation required?

No, you can go home the same day after testing as it is similar to other blood tests.

Can I book an online GeneXpert TB test in Delhi?

Yes, you can book an online GeneXpert TB test in Delhi from City Imaging very comfortably.

Which lab is best for doing the GeneXpert TB test in Delhi?

City Imaging is best for doing platelet tests in Delhi as it has advanced medical equipment and experienced professionals.