I went for NT scan and double marker test at the gestational age of 12 weeks 2 days. My NT through ultrasound is 1.5 mm. Double marker blood test has foll values - PAPP A - 1.23 (Corr MoM) ChatDoctorb - 0.43 (Corr MoM), 18.7 ng/ml Risks for TRisomy 21 and 18 are stated as Low in the report. Are my values good? I am a little concerned with a bit low bChatDoctor value.
Hi, thanks for the query. Your NT measurement is within normal range for the gestational period (upper limit is 3 mm). Your double markers are also fine. Low beta Chat Doctor is not of concern in your case as the nuclei translucency is normal and ZAPPA is also normal. Low beta Chat Doctor is worrisome in case nuclei translucency is elevated and PPP -A is decreased. This triad of findings is associated with chromosomal abnormalities. (trisomy 18 and trisomy 13) and doesn't match with your report which is normal.  Hope this information is useful. Good luck.