What term describes an excess amount of potassium in the blood?

The term that describes an excess amount of potassium in the blood is "hyperkalemia." In medical terminology, the prefix "hyper-" indicates an excess or above normal levels, while "kalemia" refers to the presence of potassium in the blood. Thus, hyperkalemia specifically denotes higher than normal potassium levels, which can be a serious condition impacting heart function and other bodily processes. Understanding this term is crucial for recognizing potential health issues related to electrolyte imbalance. The other choices refer to different conditions or terms related to potassium levels; for instance, hypokalemia indicates low potassium levels, making them distinct from hyperkalemia. Normokalemia signifies normal potassium levels, and kaliemia is a more general term without the specific indication of excess.