Lau H L, Linkins S E, King T M
Am J Obstet Gynecol. 1977 Feb 15;127(4):394-9. doi: 10.1016/0002-9378(77)90496-3.
The experience with a new, simple, and sensitive capillary tube pregnancy test requiring no refrigeration is described. The results of this test and other tests are compared against histologic results. The 1/2 unit capillary test, defined as having a sensitivity of 0.5 I.U. of HCG per milliliter, had a higher percentage of agreement with histopathologic results (99.65 per cent) than all other tests studied. The false-positive rate was 0.07 per cent and the false-negative rate was 0.28 per cent. In this series of 1,486 tests, 21 cases of pregnancy, identified by a 1/2 unit test, were missed by one or two unit tests. The earliest detection of pregnancy by the 1/2 unit capillary test confirmed by histology was 3 weeks from the last menstrual period (four cases).
本文介绍了一种新型、简单且灵敏的无需冷藏的毛细管妊娠试验。将该试验及其他试验的结果与组织学结果进行了比较。定义为每毫升含有0.5国际单位人绒毛膜促性腺激素（HCG）灵敏度的1/2单位毛细管试验，与组织病理学结果的一致率（99.65%）高于所研究的所有其他试验。假阳性率为0.07%，假阴性率为0.28%。在这一系列1486次试验中，有21例经1/2单位试验确定为妊娠的病例，经1或2单位试验时漏诊。经组织学证实，1/2单位毛细管试验最早检测到妊娠的时间是自末次月经起3周（4例）。
