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← Logic & PuzzlesIn a diagnostic blood test for a rare genetic disease, if the false positive rate is 5%, which subsequent step minimizes incorrect diagnoses?
A)Immediately begin treatment regimen
B)Repeat the same blood test
C)Perform a confirmatory genetic test✓
D)Increase dosage of initial test
💡 Explanation
Performing a confirmatory genetic test is best because it applies Bayes' Theorem for conditional probability, reducing the overall probability of a false positive diagnosis; therefore, a more specific test confirms the initial result, rather than relying on repetitions or treatments based on a potentially flawed result.
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