Rescuing an abandoned and injured dog requires extra care to address both its physical and emotional needs. Here’s a step-by-step guide:

1. **Assess the Situation**: Observe the dog from a safe distance. Check for visible injuries or signs of distress. Note the dog’s behavior to gauge its level of fear or aggression.

2. **Call for Help**: Contact local animal shelters, rescue organizations, or animal control for assistance. They can offer guidance and may be able to provide resources for rescue and medical care.

3. **Prepare for Safety**: Ensure you have a safe, calm environment for the dog. Wear protective gloves if needed, and bring supplies such as a leash, blanket, or crate.

4. **Approach Slowly**: Approach the dog calmly and slowly. Speak softly to reassure the dog and avoid sudden movements.

5. **Secure the Dog**: If the dog is approachable, gently place a leash or slip lead over its head. If the dog is too frightened or injured to move, you may need to use a blanket or towel to gently cover and secure it.

6. **Handle Injuries Carefully**: If the dog has visible injuries, handle it with care to avoid causing further pain. If possible, stabilize any broken limbs or open wounds with makeshift bandages.

7. **Transport to a Vet**: Carefully transport the dog to a veterinarian or emergency animal clinic for a thorough examination and treatment. Use a crate or secure carrier if the dog is too large or aggressive to handle easily.

8. **Provide Immediate Comfort**: Offer the dog a warm, comfortable space to rest. If you have time before transport, provide water and a soft bed to help ease its discomfort.

9. **Follow Up on Medical Care**: Ensure the dog receives appropriate medical treatment, including vaccinations, wound care, and any necessary surgeries. Follow the vet’s instructions for aftercare.

10. **Contact Rescue Organizations**: Reach out to rescue groups or shelters for additional support and to discuss options for the dog’s long-term care and adoption.

11. **Monitor and Support**: Keep an eye on the dog’s recovery and provide emotional support as it heals. A calm and loving environment will help the dog adjust and build trust.

12. **Document the Rescue**: If you’re working with local authorities or organizations, document the rescue with photos or notes about the dog’s condition and the circumstances of its abandonment.

Your compassion and careful handling can make a significant difference in the dog’s recovery and future well-being.