What condition results from abnormally low potassium levels in the blood?

Hypokalemia is the condition that arises from abnormally low potassium levels in the blood. Potassium is an essential electrolyte that plays a crucial role in various physiological processes, including maintaining fluid balance, muscle contractions, and nerve function. When potassium levels fall below normal, it can lead to a variety of symptoms such as muscle weakness, cramping, fatigue, and cardiac issues, including arrhythmias.

In contrast, the other options represent different conditions related to electrolyte imbalances. Hyponatremia refers to low sodium levels in the blood, which is unrelated to potassium. Hypertension involves high blood pressure, and while electrolyte imbalances can influence blood pressure, it does not specifically refer to potassium levels. Hyperkalemia, on the other hand, is characterized by elevated potassium levels in the blood, which is the opposite of hypokalemia. Thus, the presence of significant symptoms and the diagnostic focus specifically on potassium levels make hypokalemia the correct identification for this condition.