August 2024 Moms

Antibody M

Currently 20 weeks pregnant and my last 2 screenings for Antibody M came back negative after being positive. Has this happened to anyone else? Was it significant? 

Re: Antibody M

  • My understanding of antibody screening is that there is a threshold level that determines whether a test is positive or negative. Could be that your levels were borderline and fell enough for the second test to be negative. Low levels of antibody M seem to be less likely to cause a problem with baby even if your screen was positive. 
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  • That definitely could be it. My MFM Dr did the antibody titer test and my results were a 1, so very very low. 
  • I hope all is well and that you and your baby deliver safely!
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