1. Reduced gestational age
It may be a miscalculation of the timing of the last period, resulting in a
mismatch between the actual and estimated gestational weeks.
It could be twins or multiple births, as the value of multiple pregnancies
is higher than that of single births.
It may be an abnormal pregnancy, hydatidiform mole, where the blood HCG
value is usually higher than the normal pregnancy value for the corresponding
gestational week. If confirmed as hydatidiform mole, immediate hospitalization
4. Fetal protection after injection of HCG
On the checklist of down's screening, the reference range of the median
multiple of screen-hcg is 0-2.5. If the value is higher than that, it will have
a negative impact on maternal and child safety during pregnancy, for example,
pregnant women are more likely to suffer from preeclampsia, which needs to be
judged based on the individual's actual situation. Some pregnant women have been
injected with HCG in the early pregnancy to protect the fetus, so there is a
possibility that the HCG value is too high when doing tang sifter.