Smith B C, Winslow E H
ANNA J. 1990 Aug;17(4):283-6; discussion 287.
The Number Connection Test (NCT) was used to assess cognitive functioning in 29 chronic renal patients receiving hemodialysis. The patients required an average of 81 seconds to complete the test before hemodialysis compared to 98 seconds during hemodialysis (difference = 17 seconds) (t = 3.29; p = .0027). These findings cannot be explained by test order, sex, age, number of years on dialysis, or duration of each dialysis treatment. This study suggests that renal patients may have decreased cognitive functioning during the hemodialysis treatment. The dialysis period, though a convenient and popular time for patient education, may not be the best time to teach patients. Additional research is needed to confirm these findings and to identify the best and worst times for patient education for hemodialysis patients.
数字连接测试（NCT）用于评估29名接受血液透析的慢性肾病患者的认知功能。患者在血液透析前平均需要81秒完成测试，而在血液透析期间平均需要98秒（差异=17秒）（t=3.29；p=0.0027）。这些结果无法用测试顺序、性别、年龄、透析年限或每次透析治疗的时长来解释。这项研究表明，肾病患者在血液透析治疗期间可能认知功能下降。透析期间虽然是进行患者教育的便利且常用时间，但可能并非教导患者的最佳时间。需要进一步的研究来证实这些发现，并确定血液透析患者进行患者教育的最佳和最差时间。
