Minimum level of HCG detected by radio immunoassay is :
Ans. is d i.e. 0.001 1U/m1 Pregnancy tests All the pregnancy tests used now days are immunological, which function on the principle of detecting HCG quantitatively or qualitatively, either in the urine or blood :
1.5-3.5 IU/m1
0.5-1 IU/m1
0.02-0.05 1U/m1
0.001 IU/m1