Two Infectious Disease Epidemiologists Want to Investigate a New Laboratory

question 7

Multiple Choice

Two infectious disease epidemiologists want to investigate a new laboratory test that identifies tuberculosis (TB) infections.Dr.Merritt uses the standard test,which has a sensitivity of 80% and a specificity of 90%.Dr.Foundry uses the new laboratory test,which is 90% sensitive and 99% specific.In City A,it is known that 100 of 1,000 people have TB infections.What is the positive predictive value of the standard test in City A?

• A) 10%
• B) 47%
• C) 53%
• D) 80%
• E) 90%

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Definitions:

Third International

Also known as the Communist International or Comintern, it was an international communist organization aimed at fighting by all available means, including armed force, for the overthrow of the international bourgeoisie.

Monument

A structure, statue, or other edifice created to commemorate a person, event, or concept, often of historical, cultural, or social significance.

Government Building

A structure where governmental functions and administrative work are conducted, often recognizable by its official and sometimes monumental design.

Painting

The practice of applying pigment, color, or other medium to a surface with various tools, creating artistic expressions.