Nausea is another most commonly present symptom in the patients of hyperkalemia in which a person feels the urge to vomit. The severity of hyperkalemia indicates how serious is the condition of nausea, and it might be acute or chronic. Hyperkalemia, in its advanced stage, can also cause prolonged nausea in the patients, which is a severe health condition. Having too much potassium levels in your blood causes the person to feel anxious and dizzy and also the sensation to vomit arise. However, controlling nausea is easy because it is just a symptom, not a disease itself, so by lowering down the levels of potassium in your blood can help in preventing nausea.