Understanding screening’s limitations requires, first and foremost, an understanding of the process. A mammogram (x-ray of the breast) is administered to ostensibly healthy people to detect unsuspected disease.
了解筛查在作用上的限制首先需要了解筛查过程。乳腺癌筛查需要对表面健康的人进行乳房X光照射，以检查是否存在未被怀疑的疾病。发现任何异常状况需要进行诊断性实验，确认是否患上了疾病。如果实验结果呈阳性，就需要开始治疗过程。