一个重要的大肠癌和息肉的筛查检查就是粪便潜血试验。
An important screening test for colorectal cancers and polyps is the stool occult blood test.
粪便潜血检查需要重复进行(每年一次或每两年一次)。
Faecal occult blood testing had to be repeated (annually or biennially).
许多患者的粪便潜血检测结果呈阴性，但却患有结肠息肉。
Many patients with colon polyps are tested negative for stool occult blood.
比较以软式乙状结肠镜与粪便潜血检查进行筛检或不筛检的随机对照试验。
Randomised controlled trials comparing screening with flexible sigmoidoscopy or faecal occult blood testing to each other or to no screening.
粪便潜血检验每年一次，以检查粪便中是否潜血，粪便潜血是结肠癌的可能征兆。
Fecal Occult blood test Every year to detect hidden blood in the stool, a possible sign of colon cancer.
即使是在理想的检测环境下，也至少有20%的结肠癌在粪便潜血检查过程中被漏诊。
Even under ideal testing conditions, at least 20% of colon cancers can be missed by stool occult blood screening.
同样重要的一点是要认识到，粪便潜血化验结果呈阴性也并不意味着没有大肠癌或息肉。
It is also important to realize that stool which has tested negative for occult blood does not mean the absence of colorectal cancer or polyps.
原则上建议每个人在40岁以后每年都进行一次直肠指检及粪便潜血检测，来检测隐藏或“藏匿”的血液。
It is recommended that all individuals over the age of 40 have yearly digital examinations of the rectum and their stool tested for hidden or "occult" blood.
背景：以愈创木脂为试剂的粪便潜血实验（FOBTs）用于结直肠癌的筛查中，不仅对人血红蛋白特异性不高而且敏感性也很低。
BACKGROUND: Guaiac-based fecal occult blood tests (FOBTs) for colorectal cancer screening are not specific for human hemoglobin and have low sensitivity.
许多其他条件可能会导致有潜血出现在粪便中。
在一种特殊卡上涂上少量粪便样本用于潜血检查。
A small amount of stool sample is smeared on a special card for occult blood testing.
粪便样本，可用来测试潜血(见下文)。
Stool samples can be obtained to test for occult blood (see below).
其他有价值的发现包括直肠肿瘤，血性粪便或大便潜血。
Other useful findings include rectal tumor, blood stained stool, or occult blood.
其他有价值的发现包括直肠肿瘤，血性粪便或大便潜血。
Other useful findings include rectal tumor, blood stained stool, or occult blood.
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