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Fetal trophoblast yield
| Overview Fetal Trophoblast Identification | ||
|---|---|---|
| Average cells identified by microscopy | 4.17 cells/sample (range 0‐38 cells/sample) | |
| 0.18 cells/mL maternal blood (range 0‐1.58 cells/mL) | ||
| Trophoblast distribution (total of 125 samples collected) | ||
| 0 cells | 23 samples | 18.4% |
| 1 cells | 24 samples | 19.2% |
| 2 cells | 11 samples | 8.8% |
| 3 or 4 cells | 23 samples | 18.4% |
| 5 cells or more | 44 samples | 35.2% |
