Final answer:
Signs that a person is having trouble breathing include visible pain, noisy breathing, gasping, wheezing, a blue tinge to the skin, clutching at the throat, and potential unconsciousness if oxygen is not restored promptly.
Step-by-step explanation:
One of the signals that a person is having trouble breathing is when the person looks in pain and their breathing is noisy.
This can include symptoms such as gasping or wheezing. In severe cases, like during a choking incident, a person may not be able to speak or make any noise, they may clutch at their throat or mouth, and their skin can turn blue due to lack of oxygen, potentially leading to unconsciousness if not addressed quickly.
Other signs to be aware of include a swollen throat, difficulty breathing, and dizziness or lightheadedness that could indicate the onset of shock, especially if there is also a rapid pulse or a drop in blood pressure.