AFP, though, can be elevated by other conditions as well, so in order to get a more exact diagnosis, additional blood tests for human chorionic gonadotropin, or HCG, inhibin A, and estriol, as well as an ultrasound are usually done.

但甲胎蛋白也会由其它原因而升高，所以为了得到更准的诊断，还需检查人绒毛膜促性腺激（HCG）、A、雌三醇水平，或作超声检查。