Case | Gestational age (weeks) | Digoxin dose (mg) | Time between digoxin and US detection of cardiac activity (hours) | Cardiac activity after repeat dose of digoxin |
1 | 24 | 1 | 24 | Negative |
2 | 24.6 | 1 | 24 | Negative |
3 | 21.4 | 1 | 48 | Negative |
4 | 27 | 1 | 48 | Positive |
5 | 25 | 1 | 48 | Positive |
US, ultrasound.