PIP: In order to evaluate and compare 5 different immunological pregnancy tests (Gravindex, Prepurex, Planotest, DAP, and Pregnosticon), 500 urine specimens obtained from general practice and hospital clinics were analyzed. Gravindex, Prepurex, and Planotest are indirect latex agglutination tests, DAP is a direct latex agglutination test, and Pregnosticon is a hemagglutination-inhibition test. All of these tests but DAP accurately predicted the clinical condition in more than 95% of the cases, and of these tests only Pregnosticon gave false positive results (4 cases). The existence of blood, reducing substances, and ketones in the urine samples did not affect the tests. 1 patient out of 27 using oral contraceptives had a false positive test with Pregnosticon. All tests were easily readable but those with disposable pipettes were the most convenient. Gravindex was concluded to be overall the best pregnancy test used.