V. Explain degrees of burns.

Burns are classified into three degrees based on their severity:

1. First-Degree Burns: These are the least severe type of burns. They only affect the outer layer of the skin, known as the epidermis. Symptoms may include redness, minor inflammation (swelling), pain, and dry, peeling skin as the burn heals. The most common example of a first-degree burn is a sunburn.

2. Second-Degree Burns: These burns are more serious as they extend to the second layer of the skin, known as the dermis. Symptoms may include blisters, severe redness, and severe pain due to damage to nerve endings. There may also be swelling and the skin may appear shiny and wet. These burns may take several weeks to heal and may leave a scar.

3. Third-Degree Burns: These are the most severe type of burns. They extend through the dermis and affect deeper tissues. These burns may cause the skin to appear white or charred black. There may be little or no pain initially due to nerve damage. These burns can cause severe scarring and require immediate medical attention. They may require skin grafting or other medical procedures to heal.

It's important to note that there's also a fourth degree of burns, which extends to the muscles and bones. These burns are life-threatening and require immediate medical attention.