Rapid induction regimen with warfarin
| Day | INR | DOSE (mg) | Day | INR | Predicted maintenance dose (mg) |
|---|---|---|---|---|---|
| Derived from Fennerty et al.33 | |||||
| 1 | <1.4 | 10 | 4 | <1.4 | >8 |
| 1.4 | 8 | ||||
| 2 | <1.8 | 10 | 1.5 | 7.5 | |
| 1.8 | 1 | 1.6–1.7 | 7 | ||
| >1.8 | 0.5 | 1.8 | 6.5 | ||
| 1.9 | 6 | ||||
| 3 | <2.0 | 10 | 2.0–21 | 5.5 | |
| 2.0–2.1 | 5 | 2.2.2.3 | 5 | ||
| 2.2–2.3 | 4.5 | 2.4–2.6 | 4.5 | ||
| 2.4–2.5 | 4 | 2.7–3.0 | 4 | ||
| 2.6–2.7 | 3.5 | 3.1–3.5 | 3.5 | ||
| 2.8–2.9 | 3 | 3.6–4.0 | 3 | ||
| 3.0–3.1 | 2.5 | 4.1–4.5; miss out next day’s dose, then give a dose of 2 mg | |||
| 3.2–3.3 | 2.0 | ||||
| 3.4 | 1.5 | >4.5; miss two doses and then give dose of 1 mg | |||
| 3.5 | 1 | ||||
| 3.6–4.0 | 0.5 | ||||
| >4.0 | Zero | ||||