What to do if you miss Down's screening five months pregnant

Pregnant five months missed Tang screening, can be 24 weeks pregnant when non-invasive DNA examination, and Tang screening content is similar, but the results than Tang screening to be accurate. Secondly, you can also do four-dimensional color ultrasound, four-dimensional color ultrasound can rule out the appearance of deformity, if there are abnormal tips, may want to induce labor.