💊 Heparin vs Warfarin: A Nurse’s Guide** **Heparin:** 🔹 **Type:** Anticoagulant 🔹 **Administration:** IV or subcutaneous 🔹 **Onset:** Immediate (IV), 20-60 min (subcut) 🔹 **Monitoring:** aPTT (activated partial thromboplastin time) 🔹 **Use:** Acute management (e.g., DVT, PE) 🔹 **Reversal Agent:** Protamine sulfate **Warfarin:** 🔹 **Type:** Anticoagulant 🔹 **Administration:** Oral 🔹 **Onset:** 24-72 hours, full effect in 5-7 days 🔹 **Monitoring:** INR (international normalized ratio) �