In a patient with typhoid, diagnosis after 15 days of onset of fever is best done by_____________?
Correct answer: B. Widal test
- A. Blood culture
- B. Widal test
- C. Stool culture
- D. Urine culture
Explanation
Around the second week of typhoid fever, antibody titres are usually detectable, making the Widal test a commonly taught diagnostic choice. Blood culture is most useful early, while stool culture becomes increasingly useful later but may detect carriers as well.
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