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Widal Test(Slide Method) in Patna - Price & Details
Typhoid test, Widal agglutination test
- SummaryThe Widal Test (Slide Method) is a blood test used to help detect typhoid fever by identifying antibodies against Salmonella typhi. It supports diagnosis in patients with prolonged fever, headache, or abdominal discomfort. Doctors may recommend this test when typhoid infection is suspected. No fasting is required, and the test is suitable for all ages and genders.Read more
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- SampleBlood
- AgeAll Age Group
- GenderMale and Female
- FastingNot Required
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Know More About The Test
A quick info on Widal test
Overview
The Widal test is a rapid diagnostic test used to help evaluate typhoid and paratyphoid fever. These are highly communicable bacterial infections. In the early stages, they often affect the digestive system and can involve organs such as the lungs, heart, and brain in later stages if left undiagnosed. The Widal test is a simple, easy-to-perform test that provides rapid results and supports timely medical care. It is now available in Patna with a convenient home sample collection by PharmEasy. You can book the test online, enter your location, and choose your preferred time slot to avail this service in Patna.
When and Who Should Get a Widal Test Done?
The indications for the Widal test are the following:
- Suspected infection - If you have symptoms such as high, persistent fever; diarrhoea or constipation; or rose-coloured spots on the body, Widal testing is recommended to check for typhoid or paratyphoid fever.
- Living in poor sanitation areas - People in areas with poor sanitation or unsafe water supplies are at higher risk. Screening for enteric fever (typhoid and paratyphoid fever) is important in such areas to identify possible outbreaks.
- Exposed individuals - Anyone who has consumed contaminated food or water or has come into contact with an infected person needs to be screened for typhoid.
- Travellers - Anyone travelling or returning from areas with a high prevalence of typhoid fever should get screened.
What Conditions Can a Widal Test Help Detect?
The Widal test is used specifically to support the detection of typhoid fever and paratyphoid fever, collectively known as enteric fever. These illnesses are clinically similar, with paratyphoid fever generally being milder and with a faster recovery rate.
The following are the signs and symptoms of typhoid and paratyphoid fever:
- High persistent fever (103- 104° Fahrenheit).
- Aches (headaches or body aches).
- Digestive disturbances (diarrhoea or constipation).
- Rose-coloured spots (on the chest or stomach).
- Throat infection (cough or sore throat).
Severe symptoms include:
- Intestinal bleeding - Blood in the stools may be observed in severe cases.
- Meningitis - Inflammation of protective membranes surrounding the brain and spinal cord.
- Sepsis - A life-threatening condition caused by an extreme response to bacterial infection.
Widal Test Preparation
What to Expect Before the Test
- No fasting is required for the Widal test. Keep yourself hydrated before the test.
- Always inform your doctor about medications or vaccination history before the test.
- Consult your healthcare provider for any special instructions before the test.
What to Expect During the Sample Collection
A blood sample is required for the Widal test. You can expect the following during sample collection:
- An elastic band is tied around your upper arm for better access to your veins.
- A needle is inserted into a vein in the inner arm to collect the blood sample.
- A bandage is placed over the puncture site to stop any minor bleeding.
What to Expect After the Test
- The test procedure is usually safe, with minimal to no risk.
- Feeling dizzy for a few seconds is normal; sit and relax for a few minutes to recover.
Note: If you notice anything unusual at the puncture site, such as persistent bleeding, a rash, or pain, consult your healthcare provider.
What are the Parameters Included in a Widal Test?
- The Widal test measures antibody levels, also called titres, in the body.
- The antibody levels are detected in response to four specific bacterial antigens, including S. Typhi (O, H) and S. Paratyphi (A, B).
To know more about the parameters, refer to the table below:
|
Parameter |
Significance |
|---|---|
|
TO titre |
Check for antibodies against the ‘O’ antigen of S. Typhi. |
|
TH titre |
Check for antibodies against the ‘H’ antigen of S. Typhi. |
|
AH titre |
Check for antibodies against the ‘A’ antigen of S. Paratyphi. |
|
BH titre |
Check for antibodies against the ‘B’ antigen of S. Paratyphi. |
Normal Range of Widal Test Parameters
The Widal test measures antibody levels formed against four specific antigens and is expressed in titres. Refer to the table below for more details:
|
Antigen tested |
Non-reactive (normal) |
Borderline / Equivocal |
Significant titre (suggestive of infection) |
|---|---|---|---|
|
Salmonella Typhi O (TO) |
Absent / < 1:20 |
1:20 - 1:40 |
1:80 or above (in endemic areas: 1:160 or above) |
|
Salmonella Typhi H (TH) |
Absent / < 1:20 |
1:20 - 1:80 |
1:160 or above (past infection or vaccination also possible) |
|
Salmonella Paratyphi AH |
Absent / < 1:20 |
1:20 - 1:40 |
1:80 or above |
|
Salmonella Paratyphi BH |
Absent / < 1:20 |
1:20 - 1:40 |
1:80 or above |
Important note: The normal reference ranges may vary from lab to lab. The baseline antibody titre levels are high in people living in an endemic area. Always refer to the ranges in your report and consult your doctor for better interpretation.
Widal Test Result Interpretation
The Widal test is a non-definitive test, and the results may be associated with typhoid or paratyphoid fever. Clinical correlation and expert guidance are important to confirm a diagnosis.
Refer to the table below for more details:
|
Result pattern |
Finding |
Potential interpretation (always confirm with a doctor) |
|---|---|---|
|
TO high, TH high |
Both elevated |
|
|
TO high, TH low or normal |
Only O elevated |
|
|
TO low or normal, TH high |
Only H elevated |
|
|
Paratyphi AH or BH elevated |
Paratyphi positive |
|
|
All antigens non-reactive |
Negative |
|
|
Low titres across all antigens |
Borderline/ equivocal |
|
Disclaimer: This table is for educational purposes and provides a risk assessment only. These findings do not confirm a diagnosis. The Widal test is known to produce false-positive and false-negative results in various clinical situations. Always consult your doctor to understand how these results relate to your symptoms and overall health.
Widal Test Risks and Limitations
The Widal test has certain limitations and may produce false-positive or false-negative results. Consider these factors during testing to prevent misinterpretation. Several factors can influence the Widal test results, including:
- Timing of the test - During the first week of infection, antibody titres are low and hence give false-negative results.
- Endemic areas - Baseline antibody titre levels are high in endemic areas such as India, Bangladesh, Pakistan, and Africa.
- Vaccination - Previous vaccination can cause false-positive results, as antibody titres are high.
- Past infection - Antibody titres can stay elevated for months after infection, giving false-positive results.
- Other medical conditions - Malaria or dengue can sometimes cause false-positive results.
- Use of antibiotics - Prior antibiotic use can cause false-negative results.
Widal Test Price in Patna
PharmEasy offers the Widal test at a price starting at INR 199 in Patna. The cost may vary depending on your location. Check the list below to compare the Widal test price across major cities.
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City |
Offer Price |
|---|---|
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199 |
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199 |
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199 |
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199 |
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199 |
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199 |
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199 |
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199 |
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199 |
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199 |
Areas We Serve in Patna
You can book the Widal Test in Patna through PharmEasy with convenient home sample collection across several localities, including :
- Boring Road
- Rukanpura
- Kankarbagh
- Rajendra Nagar
- Patliputra Colony
- Ashiana Nagar
- Danapur
- Khagaul
- Phulwari Sharif
- Fraser Road
- Bankipore
- Gandhi Maidan
- Kadamkuan
- Sadaquat Ashram
- New Jaganpura
- Rajiv Nagar
- Mahendru
- Shastri Nagar
- Anisabad
- Kumhrar
You can also check service availability during purchase by entering your pincode.
Widal Test Sample Collection: Home vs. Diagnostic Lab
PharmEasy offers a convenient home sample collection citywide in Patna. Check the table below to learn more about the benefits of the home sample collection service offered by PharmEasy compared with other diagnostic labs:
|
Feature |
Home collection (PharmEasy) |
Traditional diagnostic lab |
|---|---|---|
|
Convenience |
High - sample collected from your home or office. |
Low - requires travelling and waiting in queues. |
|
Time saving |
Maximum - no travel time. You choose the time slot. |
Minimum - depends on traffic and lab wait time. |
|
Safety and comfort |
Safe - helps avoid exposure to other sick patients. |
Moderate - exposure to crowded waiting areas. |
|
Process |
A professional phlebotomist visits you. |
You must visit the facility during its working hours. |
|
Report access |
Digital - reports are sent directly to your app or email. |
Often requires a second visit for physical copies. |
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References
People Also Ask
What does a positive Widal test result mean?
Does a negative Widal test confirm that I am not infected with typhoid fever?
How does typhoid fever spread, and how can it be prevented?
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How long does it take to receive Widal test results in Patna?
Over 10 million happy users PharmEasy Labs
- Because the digital report is available on WhatsApp, there's no need to go back to the lab. Thanks, PharmEasy!Sachin sharma11 Jan ‘26
- Thanks to the coupon discount, the blood test was done at a lower price.Komal04 Jan ‘26
- The lab technician was a good and knowledgeable professional.Rakesh Pandey06 Jan ‘26
- Due to bad weather, it's difficult to reach the lab. But home collection makes things easier.Arjun08 Jan ‘26
- Thanks to the Swasth AI feature, the report is easy to understand.Priya Mehta02 Jan ‘26
- The report is available on the same day. Wow!Vikas Patel05 Jan ‘26
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