NT of 1.0mm at 12 weeks of pregnancy and amniotic fluid depth of 26mm are normal and the pregnancy can continue.
NT is the thickness of the posterior nuchal translucency, which is mainly used to assess the risk of fetal chromosomal abnormalities and is a screening result. At 12 weeks of gestation, the normal reference range of NT should be less than 2.5mm, therefore, if it is 1.0mm, it is normal.
In early pregnancy, the main source of amniotic fluid is the dialysate of maternal serum that enters the amniotic cavity through the fetal membranes. At 11 weeks of gestation, the fetus’s kidneys already have the function of excretion, therefore, at 12 weeks of gestation, the amniotic fluid has fetal urine in addition to the maternal serum dialysate.
At 12 weeks of gestation, the amount of amniotic fluid is about 50 milliliters, and the vertical depth of amniotic fluid is 20mm to 40mm, so the depth of amniotic fluid at 12 weeks of pregnancy is 26mm, which is within the normal range.
The main function of amniotic fluid is to protect the fetus from extrusion, prevent limb deformity and limb adhesion; it can also keep the amniotic cavity at a constant temperature, which is conducive to the growth and development of the baby; and it can also reduce the state of discomfort that the fetal movement brings to the mother during pregnancy.
To summarize, NT1.0 at 12 weeks of pregnancy, amniotic fluid depth of 26mm is normal, you can continue the pregnancy, but also recommended to participate in prenatal checkups on time, keep an eye on the baby’s intrauterine status.