Bauer R L
Geriatrics. 1986 May;41(5):91-2, 96-102, 106-7.
The fecal occult blood test is safe and inexpensive; however, diet, medications, desiccation of the sample, and delay in developing the specimen may affect results. If the test is used, six separate samples, two from each of three consecutive bowel movements, should be examined to obtain optimum results. Serum cholesterol need not be assessed routinely in geriatric patients. Dietary restriction of fats is a necessity only in the context of a weight reduction diet.
粪便潜血试验安全且费用低廉;然而,饮食、药物、样本干燥以及标本送检延迟都可能影响结果。如果进行该检测,应检查六个独立样本,从连续三次排便中的每次排便中取两个样本,以获得最佳结果。老年患者无需常规评估血清胆固醇。仅在减肥饮食的情况下才有必要限制脂肪摄入。