SPM – MCQ 78 – Negative predictive value

Collection of Medicine MCQs (Cardiovascular system) for medical students. Concept based MCQs with detailed explanations which help students to gain valuable insights and gain an edge in competitive examinations. More than just answering MCQs, the explanations will improve the knowledge and understanding about the conditions discussed. Also useful for MD students who are preparing for Superspeciality entrance examinations. Medicine MCQs - Cardiovascular System Kindle Edition: Click Here for a Preview. Comments and suggestions are most welcome.

A diagnostic test for a particular disease has a sensitivity of 0.90 and a specificity of 0.80. A single test is applied to each subject in the population in which the diseased population is 30%. What is the probability that a person, negative to this test, has no disease?
a) Less than 50%
b) 70%
c) 95%
d) 72%

Correct answer : c) 95%

The probability that a person negative to this test has no disease signifies the Negative predictive value of the test.


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