Use of a radioreceptor test for HCG in women practicing contraception.

Abstract The importance of a simple, rapid and highly sensitive test for the diagnosis of early pregnancy cannot be over-emphasized. In the present times when newer delivery systems of contraceptive agents and menstrual regulation procedures are increasingly used for fertility regulation, it is inevitable that confirmation of early pregnancy poses a severe problem. This radioreceptor test has been found to be very reliable even in early cases. A positive test was 100% accurate for pregnancy whereas the accuracy of a negative test was found to be 94.4%. Confirmation of these results was done by various other parameters like clinical, histological, radioimmunoassay for HCG and biological test for pregnancy.