1. When selecting a diagnostic test for a patient presenting with symptoms of a myocardial infarction, which of the following factors is most critical? A. Cost of the test B. Sensitivity of the test C. Specificity of the test D. Availability of the test Answer: B. Sensitivity of the test Rationale: The sensitivity of a test is crucial in acute conditions like myocardial infarction where missing a diagnosis can be lifethreatening. 2. A 50-year-old male presents with jaundice. Which diagnostic test would be most appropriate to evaluate liver function? A. Serum albumin B. Liver ultrasound C. Serum bilirubin D. Coagulation profile Answer: C. Serum bilirubin Rationale: Serum bilirubin levels are directly affected by liver function and are a primary indicator of hepatic health. 3. In a patient suspected of having an autoimmune disease, which diagnostic test would provide the most definitive evidence?