This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Screening, Subject name: Social & Preventive Medicine
The purpose of screening test- 
Select and explain. 
A. To diagnose the cases, B. To so out persons who are at increased risk, C. To segregate diseased and non diseased persons, D. None
B: To so out persons who are at increased risk
Answer: B: To so out persons who are at increased risk 
Explanation: .<p>four main uses of screening inc ludes case detection ,control of disease,reserch purposes,educational oppounities.screening also helps in the soing out of people who are at a higher risk.</p><p>ref:park&;s textbook of preventive and social medicine,22 nd edition,pg no128</p>