2 doctors weighed in:
Is it too late to have an amniocentesis in the 3rd trimester?
2 doctors weighed in

Dr. Golder Wilson
Clinical Genetics
1 doctor agrees
In brief: No
It is easier to do amnio in the third trimester when amniotic fluid is abundant.
Uses of third trimester amnio include testing fetal maturity (surfactant, other levels) to time delivery when there are complications (e.g., maternal pre-eclampsia). Use for genetic testing may allow preparation for a severe disorder (e.g., fetal trisomy 18) without options for pregnancy termination.

In brief: No
It is easier to do amnio in the third trimester when amniotic fluid is abundant.
Uses of third trimester amnio include testing fetal maturity (surfactant, other levels) to time delivery when there are complications (e.g., maternal pre-eclampsia). Use for genetic testing may allow preparation for a severe disorder (e.g., fetal trisomy 18) without options for pregnancy termination.
Dr. Golder Wilson
Dr. Golder Wilson
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