Doctors use several tools to screen for colon cancer and precancerous lesions, including blood tests and imaging technologies such as X-rays and CT scans (also known as "virtual" colonoscopies).

医生运用几种措施筛查结肠癌以及癌前期病变，包括血液检测以及如x 线和CT筛查（也称虚拟结肠镜）的影像学手段。

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That makes it one more reason to get regular checkups —including blood pressure and various blood tests.

这使它更有理由得到定期检查 ——包括血压和各种血液检查。

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The tests can reliably demonstrate the presence or absence of malaria parasites in the blood and can be performed at all levels of the health system, including community Settings.

该检测可以可靠地表明血液中是否存在疟原虫，包括社区在内的各级卫生系统都可以做这项检测。

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After a comprehensive assessment including interviews with her and her family, neurological and psychological tests, a brain scan and blood tests she was diagnosed with mild cognitive impairment due to the earliest form of Alzheimer's.

WSJ: New Push For Early Testing, Treatment For Dementia