Which of the following signs and symptoms is associated with hyperkalemia?

Hyperkalemia, or elevated levels of potassium in the blood, can manifest through a variety of signs and symptoms, one of which is vomiting. This occurs as increased potassium levels can disrupt normal cell functions and metabolic processes, potentially leading to gastrointestinal disturbances.

When potassium levels are elevated, the heart can also become affected, and while this can lead to other symptoms, gastrointestinal symptoms like vomiting often arise as the body reacts to maintain homeostasis. Increased potassium levels can irritate the gastrointestinal tract, contributing to symptoms such as nausea and vomiting.

Other signs and symptoms associated with hyperkalemia can include muscle weakness or paralysis and cardiac irregularities, but in the context of the options provided, vomiting is specifically a recognized symptom linked to the body's response to hyperkalemia.