What should be encouraged if a person is experiencing angina?

When a person is experiencing angina, it is vital to encourage them to chew on aspirin. Aspirin acts as an antiplatelet agent, helping to prevent blood clots from forming in the coronary arteries that may be contributing to the angina episode. By promoting blood flow and preventing clot formation, aspirin can help alleviate the severity of the angina and reduce the risk of a heart attack.

In contrast, lying flat on the back may cause discomfort or exacerbate the situation, as it can limit breathing in some individuals. Immediate exercise is not advisable since physical activity may increase the heart's demand for oxygen, potentially worsening the angina. Drinking water, while beneficial for hydration, does not address the underlying cardiovascular issue causing angina. Thus, chewing on aspirin is the most appropriate and beneficial action to take in this situation.