Which of the following actions should be taken if a client experiences a chemical burn?

Rinsing a chemical burn with cold water is the appropriate action to take because it helps to cool the area and dilute the chemical that caused the burn, potentially reducing the severity of the injury. Cold water can also alleviate pain and prevent further skin damage by removing some of the chemical agents from the skin’s surface. This is a critical first step in first aid for chemical burns, as it minimizes the effects of the irritants.

In contrast, applying heat can exacerbate the injury and intensify pain. Covering the burn with a bandage may not be advisable immediately, especially if the chemical is still present; it could trap the irritant against the skin and worsen the damage. Applying shampoo is not relevant for treating burns, as it would not provide any relief or aid in healing and could introduce further irritants to the affected area.