em2912W+4D建卡：胎心158次/分


                                                         头臀长69MM


                                                         头颅光环和肢芽出现


                                 16W+5D产检：唐氏筛查 低危


                                                         微量元素正常


                                                         胎心130次/分


                                                          没做B超