甲胎蛋白(AFP)
非孕时血 2~16μg/L
孕20~21周 80.5士41.6μg/L
孕22~23周 85.8士47.8μg/L
孕24~25周 91.2士38.3μg/L
孕26~27周 152.0士86.0μg/L
孕28~29周 137.4士51.2μg/L
孕30~31周 143.9士29.4μg/L
孕32~33周 154.3士51.7μg/L
孕34~35周 148.0士60.9μg/L
孕36~37周 121.8士59.0μg/L
孕38~39周 116.4士67.4μg/L
孕40……周 104.6士66.4μg/L