受试者空腹口服示踪量的I如同时给予氯化钾(15微克/千克体重或300微克/m)口服能提高本试验的敏感性此称为碘?过氯酸盐试验后1或2小时测量甲状腺部位的第一次摄I率继之口服过氯酸钾(KClO4)400微克1小时后再测摄I 率甲状腺机能正常者第二次测量的摄I率较第一次无明显下降当某些疾病使酪氨酸碘化受阻时再次测量其摄I率较第一次明显下降
了解甲状腺激素抑制试验、过氯酸钾释放试验的结果分析和临床应用。
Understand the thyroid hormone inhibition test, result analysis and clinical application of Perchlorate suppression test.
结论：摄131i试验仅表示甲状腺组织的摄取功能，过氯酸钾释放试验反映的是甲状腺激素合成过程中过氧化物酶活性。
Conclusion: 131i uptake test can show the ability of I uptake for thyroid only and KCl4 release test can reflect the activity of TPO for thyroxin anabolic process.
结果29例高碘性甲状腺肿患者中有25例过氯酸钾释放试验为阳性，而28例正常人仅有4例为阳性，其阳性率分别为86.2%和14.3%。
Results 25 out of 29 patients and 4 out of 28 normals were abnormal in perchlorate washout test, one positive rate was 86. 2%, the other was 14. 3%.
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