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[Study of an immunochemical test for early pregnancy detection].

The accuracy and reliability of the immunochemical tube test Gravinep for the early pregnancy detection were determined in comparison with another immunochemical test (Pregnosticon All-in) and with clinical data. The urine samples of 88 women were analysed. In 98.9% cases the result obtained with the Gravinep test was clinically confirmed and in 96.6% cases both immunochemical tests gave the same result. In a number of cases (6.8% with Gravinep and 5.7% with Pregnosticon) the result of the immunochemical reaction was doubtful, although it indicated the condition suggested by clinical examination.