Symptoms of hyperkalemia (high potassium) may include:

Hyperkalemia, which refers to elevated potassium levels in the blood, can indeed lead to various symptoms, and numbness and tingling are commonly reported among those symptoms. This phenomenon can occur due to the effect of high potassium on nerve and muscle function. Elevated levels of potassium can alter the electrical charges that are vital for nerve signal transmission and muscle contractions, potentially leading to sensations such as numbness and tingling, particularly in the extremities.

In contrast, hypertension and hypotension are more related to blood pressure changes that might occur for various reasons, but they are not directly symptomatic of hyperkalemia. Ringing in the ears, known as tinnitus, is typically associated with auditory issues rather than elevated potassium levels. Thus, numbness and tingling is the symptom most directly associated with hyperkalemia, making it the correct response in this context.