Hep Lock
Hep Lock is a sterile, low-dose heparin sodium flush solution. It is designed solely to keep intravenous access devices clear of blood clots and is not intended for systemic anticoagulant therapy. It helps ensure the IV line remains open and functional for subsequent medication administrations or blood draws.
Dosage by Body Weight
Dosage is based on the volume capacity of the specific catheter or IV device, typically ranging from 10 to 100 units. It is instilled into the device after each medication administration or periodically (usually every 8 to 24 hours) if the device is not in active use. Always confirm device-specific protocols.
- Body Weight
- Below 5 kg
- Dose
- 0.5 to 1 mL of 10 units/mL solution
- Frequency
- After each catheter use or per protocol
- Tracking Notes
- Use with extreme caution. Avoid high-concentration (100 units/mL) flushes in neonates and low birth weight infants to prevent systemic anticoagulation.
- Body Weight
- 5-7 kg
- Dose
- 0.5 to 1 mL of 10 units/mL solution
- Frequency
- After each catheter use or per protocol
- Tracking Notes
- Dose volume should closely match the internal volume (lumen capacity) of the catheter to prevent excess systemic entry.
- Body Weight
- 8-10 kg
- Dose
- 1 mL of 10 units/mL solution
- Frequency
- After each catheter use or every 12 hours
- Tracking Notes
- Ensure prior saline flush is completed if administering medications incompatible with heparin.
- Body Weight
- 11-15 kg
- Dose
- 1 to 2 mL of 10 units/mL or 100 units/mL solution
- Frequency
- After each catheter use or every 12 to 24 hours
- Tracking Notes
- Choice of concentration (10 units/mL vs 100 units/mL) depends on the type of central or peripheral venous access device.
- Body Weight
- 16-20 kg
- Dose
- 1 to 2 mL of 10 units/mL or 100 units/mL solution
- Frequency
- After each catheter use or every 12 to 24 hours
- Tracking Notes
- Aspirate the lock solution from the catheter before administering subsequent medications if required by institutional protocol.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Below 5 kg | 0.5 to 1 mL of 10 units/mL solution | After each catheter use or per protocol | Use with extreme caution. Avoid high-concentration (100 units/mL) flushes in neonates and low birth weight infants to prevent systemic anticoagulation. |
| 5-7 kg | 0.5 to 1 mL of 10 units/mL solution | After each catheter use or per protocol | Dose volume should closely match the internal volume (lumen capacity) of the catheter to prevent excess systemic entry. |
| 8-10 kg | 1 mL of 10 units/mL solution | After each catheter use or every 12 hours | Ensure prior saline flush is completed if administering medications incompatible with heparin. |
| 11-15 kg | 1 to 2 mL of 10 units/mL or 100 units/mL solution | After each catheter use or every 12 to 24 hours | Choice of concentration (10 units/mL vs 100 units/mL) depends on the type of central or peripheral venous access device. |
| 16-20 kg | 1 to 2 mL of 10 units/mL or 100 units/mL solution | After each catheter use or every 12 to 24 hours | Aspirate the lock solution from the catheter before administering subsequent medications if required by institutional protocol. |
Formulation
Purpose
Used to maintain the patency of indwelling intravenous (IV) catheters or injection devices by preventing blood clots from forming inside the line.
Generic Name
Heparin Sodium (Flush)Scheduled Drug
No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.