what is widal test?
Typhidot (or Widal Test) is a rapid serological test for the diagnosis of typhoid fever. Typhidot test is a dot ELISA kit that detects IgM and IgG antibodies against the outer membrane protein (OMP) of the Salmonella typhi. The typhidot test becomes positive within 2-3 days of infection and separately identifies IgM and IgG antibodies. The test is based on the presence of specific IgM and IgG antibodies to a specific 50KD OMP.
when do you expect results?
24 to 36 Hours
what is widal test used for?
The typhoid screening test is a used to identify, diagnose & monitor of fever and other salmonella infections. This is conducted to detect antibodies against the infection.
reason to take widal / typhoid test (typhidot) test
Typhoid fever is characterized by
- Gradual increase in fever as high as 40 °C (104 °F)
- Non-bloody diarrhea
- Rash of flat, rose-colored spots (rarely)
- Intestinal hemorrhage in severe cases
- Relatively abnormal slow heart beat
- Excessive sweating
- Enlarged spleen and liver
- Distended abdomen
preparations needed for widal / typhoid test (typhidot) test
No Fasting Required. No other special preparations required.
Specimen type: Serum (Blood Sample) , Specimen collection procedure : Venipuncture - Collection of blood from a vein, usually from the arm.
typhidot / widal test cost
Typhidot test (Widal test) prices vary from one pathological lab to another. However, the Widal test cost is usually not too exorbitant and is easily affordable. TheWidal test cost offered at home also differ from traditional pathological labs. Portea™ provides this test at a price of Rs 175*.
Understanding results ofWidal Test / Typhoid Test (Typhidot)
|No infection(Widal)||No infection(Typhidot)|
‘*A Reference range is a set of values which helps the healthcare professional to interpret a medical test. It may vary with age, gender, and other factors. Reference ranges may also vary between labs, in value & units depending on instruments used and method of establishment of reference ranges’