Most screenings mentioned are matched with their appropriate age for initiation, except for the Pap test, which should start at 21 years old instead of 18. The PSA test begins at 50, mammography at 50, and colonoscopy at 45. Understanding these recommendations is vital for preventive health care. ;
The PSA test, mammography, and colonoscopy are matched correctly with their respective initial ages: 50, 50, and 45 years old. However, the Pap test should start at 21 years old, not 18. Therefore, the correct answer is A, B, and D only are matched correctly.
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