A 52-year-old man attends an outpatient clinic complaining of right knee pain. While examining him, the physician also measures his random blood glucose, which is 260 mg/dL, and diabetes is confirmed. The detection of diabetes in this manner is an example of:
- A Mass screening
- B Opportunistic screening ✓
- C Multiphasic screening
- D High-risk screening
Correct answer: B. Opportunistic screening
Explanation
Opportunistic screening, also called case finding, means testing for one condition when a patient presents to health services for an unrelated complaint. No organised invitation or population coverage is involved, which distinguishes it from mass screening where the whole population is actively offered the test. Multiphasic screening means applying several tests simultaneously to a large group, and high-risk screening restricts testing to defined risk groups rather than whoever walks in.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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