Use of a radioreceptor test for HCG in women practicing contraception

The importance of a simple, rapid and highly sensitive test for the diagnosis of early pregnancy cannot be overemphasized. 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.