NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Prepare to ace the NAPLEX. Utilize flashcards and multiple choice questions with hints and explanations. Equip yourself thoroughly for the exam!

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What does 100% specificity in a test mean?

  1. It will be positive in all patients without the condition

  2. It will be negative in all patients with the condition

  3. It will be negative in all patients without the condition

  4. It has no false positives

The correct answer is: It will be negative in all patients without the condition

When a test has 100% specificity, as mentioned in option C, it means that the test will be negative in all patients who do not have the particular condition for which the test is being conducted. This indicates that the test will correctly identify all individuals who do not have the condition as negative, without providing any false positive results. Options A, B, and D are incorrect: Option A suggests that the test will be positive in all patients without the condition, which is not true for a test with 100% specificity. Option B implies that the test will be negative in all patients with the condition, which is actually the characteristic of a test with 100% sensitivity rather than specificity. Option D states that the test has no false positives, which is a feature of a test with high specificity but not specifically indicative of 100% specificity.