Singer's alkali denaturation test is used to differentiate
Singer's alkali denaturation test : It is a diagnostic test for vasa pre In this nucleated red blood cells are detected Ref: Dutta Obs 9e pg 243.
Aboion from early pregnancy
Perimenopausal from pregnancy
Uterine malignancy from pegnancy
Vasa pre from placenta pre
General obstetrics