Pet first aid kits are first aid kits designed for emergency medical situations that pets may encounter. They usually contain some basic medical supplies and tools to help pet owners perform initial first aid treatment for their pets before a professional veterinarian arrives. The following are some application scenarios and recommended items for pet first aid kits:

### Application scenarios:
1. Minor wound treatment: such as cuts, abrasions, etc.
2. Burn treatment: Minor scalds or chemical burns.
3. Fractures and dislocations: Initial fixation when pets are injured.
4. Poisoning treatment: Such as accidental ingestion of toxic substances or plants.
5. Allergic reaction: Allergic reaction to certain substances or environments.
6. Heat stroke: Symptoms of heat stroke that pets may experience in high-temperature environments.
7. Dyspnea: First aid measures when pets have shortness of breath or difficulty breathing.
8. Shock state: Pets have shock symptoms due to injury or illness.

### Suggested items to include:
1. Band-Aids and bandages: For covering and dressing minor pet wounds.
2. Medical tape: For securing bandages or other dressings.
3. Disinfectants: Such as iodine or chlorhexidine, for cleaning wounds.
4. Ice packs or cold packs: For reducing swelling and pain.
5. Hemostatic powder or gauze: For controlling bleeding.
6. Painkillers: Painkillers for pets, are to be used as directed by a doctor.
7. Antihistamines: For allergy relief, to be used as directed by a doctor.
8. Pet masks: To prevent bites when handling injured pets.
9. Pet transport cage: For use when a pet needs to be transferred to a veterinary clinic.
10. Thermometer: For measuring the pet's temperature.
11. Flashlight and spare batteries: For illumination at night or in low-light environments.
12. Pet First Aid Manual: Provides basic pet first aid instructions and steps.
13. Personal Protective Equipment: Such as disposable gloves, used to protect yourself from infection.
14. Pet Information Card: Contains basic information about the pet and the owner's contact information.

Remember that the pet first aid kit is intended to provide initial help in an emergency, not a substitute for professional veterinary treatment. When dealing with a pet's medical emergency, a professional veterinarian should be contacted as soon as possible.