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Harmful Microbes

The diagnosti...

Question

The diagnostic test for kala-azar which yields high percentage of positive findings is

A

Stool test

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B

Blood culture

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C

Liver biopsy

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D

Rapid blood test

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Solution

The correct option is D Rapid blood test
Serological testing is much more frequently used in areas, where leishmaniasis is endemic. A 2014 Cochrane review evaluated different rapid diagnostic tests. One of them, the rK30 immunochromatographic test, gave correct, positive results in 92% of the people with visceral leishmaniasis.
So, the correct answer is option D.

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99 %

effective in detecting a certain disease when patient is infected actually by the disease. However, the test also yields a false positive result for

0.5 %

of the healthy person tested if

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percent of the population actually has the disease, what is the probability that a person has the disease given that his test result is positive?

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effective in detecting a certain disease when it is present. However, the test also yields a false-positive result for

0.5 %

of the healthy person tested (i.e., if a healthy person is tested, then, with probability

0.005

, the test will imply he has the disease). If

0.1

percent of the population actually has the disease, what is the probability that a person has the disease given that his test result is positive?

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