<prompt> Post coital test detects all of the following. Except:Fallopian tube blockCervical factor abnormalitySperm countSperm abnormality  <response>: Ans. is a fallopian tube block. Shaws, 13e, p 202, 210 12e, p. 158, 164Postcoital test can be used to study the properties of cervical mucus i.e.,. its capability to allow sperm penetration and presence of antisperm antibodies and also about ovulation.Study of cervical mucus has nothing to do with fallopian tube patency.Fallopian tube patency is checked by -HysterosalpingographyCO2 - insufflation testLaparoscopic chromotubationSalpingographyHysteroscopyTranscervical fallo scopyAmpullary and fimbrial salpingoscopy 