Final answer:
When a person exhibits changing levels of consciousness, have them lie down and seek emergency medical care quickly. Recognize the signs of choking or stroke using the Heimlich maneuver, CPR, or the FAST mnemonic to respond effectively.
Step-by-step explanation:
If a person exhibits changing levels of consciousness, it is important to act quickly and appropriately. The correct action would be to have the patient lie down in a safe area to prevent them from injuring themselves should they faint or fall. It is also crucial to monitor their breathing and response level and to prepare to apply first aid if necessary. In contrast, consulting a first aid book might delay immediate action, allowing the patient to leave the area could be dangerous if they are not fully conscious, and giving the patient fluids could be harmful if they are not fully alert and able to swallow safely.
In any case of emergency, especially when someone experiences changes in consciousness, seeking emergency medical care should be done as promptly as possible. For example, if you encounter someone who is choking, noticing the signs such as difficulty speaking, labored breathing, clutching at the throat, and changes in face color is pivotal. Depending on the situation and if the person is choking, techniques such as back slaps, the Heimlich maneuver, or CPR may be necessary once the person is in a safe position and depending on their state of consciousness and ability to breathe.
In cases like stroke, where neurological function is at stake, quick action is imperative. The FAST mnemonic is an essential tool for recognizing the signs of stroke: Face drooping, Arm weakness, Speech difficulty, and Time to call emergency services. These measures can save lives and improve the chances of recovery from serious conditions.