Table 2.
Clinical activities performed by GCs who counseled about mosaic embryos in preimplantation and prenatal settings.
| Activities included in role (yes) | N (%) |
|---|---|
| GCs who counseled in preimplantation settings | 64 |
| Provided pretest counseling for PGT-A | 32 (51) |
| Provided posttest counseling after PGT-A | 55 (87) |
| Disclosed PGT-A results, including mosaic findings | 25 (46) |
| Interpreted PGT-A results, including mosaic findings | 42 (76) |
| Discussed possible pregnancy outcomes of MET on the basis of PGT-A results | 55 (100) |
| Facilitated patients’ decision-making (i.e., to consider MET, cryopreserve or discard embryos, and/or undergo another IVF cycle) | 45 (82) |
| Helped rank mosaic embryos for transfer on the basis of specific PGT-A results | 35 (64) |
| Discussed prenatal screening and prenatal diagnosis options | 53 (96) |
| Facilitated referral to a prenatal genetics clinic | 15 (27) |
| Discussed postnatal assessment | 26 (47) |
| GCs who counseled in prenatal settings | 47 |
| Counseled about possible pregnancy outcomes after MET | 43 (92) |
| Testing options GCs recommended to patients pregnant after MET | |
| Amniocentesis | 40 (85) |
| Chorionic villus sampling | 6 (13) |
| NIPT | 7 (15) |
| Postnatal assessment | 23 (49) |
| Other | 4 (9) |
GC = genetic counselor; IVF = in vitro fertilization; MET = mosaic embryo transfer; NIPT = noninvasive prenatal testing; PGT-A = preimplantation genetic testing for aneuploidy.