Description

Widal Test cost in Delhi

Widal Test is an agglutination test which detects the presence of serum agglutinins (H and O) in patients serum with typhoid andparatyphoid fever. Timing of test is important, as antibodies begin to arise during end of first week. The titres increase during second,third and fourth week after which it gradually declines. The test may be negative in early part of first week. Single test is usually of notmuch value. A rise in titre between two sera specimens is more meaningful than a single test. If the first sample is taken late in thedisease, a rise in titre may not be demonstrable. Instead, there may be a fall in titre.False positive Widal test results are also known to occur in typhus, acute falciparum malaria (particularly in children), chronic liver diseaseassociated with raised globulin levels and disorders such as rheumatoid arthritis, myelomatosis and nephrotic syndrome.