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At times, diagnostic tests are ordered for confirmation purposes already. Then there are also tests made for screening certain diseases among those who are found to be at risk or pre-disposed to certain medical conditions. Medical and diagnostic examinations help in the preventive effort by detecting potential problems ahead of time. Early detection facilitates early and less expensive interventions. Treatment at an early stage is also more effective than when started at a later stage of a medical condition. Routine exams may reveal health concerns previously unknown to the client and thus proper health teaching may be given to address those concerns early. Diagnostic exams may guide physicians in arriving with appropriate interventions to prevent worsening of the condition. The earlier the condition is diagnosed, the more options of care available to choose from with less invasive or less expensive procedures still applicable. Screening tests may help arrest the possible development of a condition. For instance, through screening, a client may find out that he’s at high risk of developing Diabetes Type II. Knowing such risk, he may choose to start modifying his life style to one that will prevent him from going down the diabetic path.