Which of the following is NOT a manifestation of hyperkalemia?

When considering the manifestations of hyperkalemia, it is essential to understand the physiological effects of elevated potassium levels in the body. Hyperkalemia can lead to a range of symptoms due to its impact on the neuromuscular and cardiovascular systems.

Muscle twitching, coma, and anorexia are recognized symptoms of hyperkalemia. Muscle twitching can occur as increased potassium levels affect neuromuscular excitability, potentially leading to muscle weakness or paralysis if the condition becomes severe. Coma may be observed in extreme cases, often related to the dangerous effects of hyperkalemia on the heart and overall metabolism. Anorexia can occur due to gastrointestinal effects associated with elevated potassium levels, including nausea and abdominal discomfort.

On the other hand, improved reflexes is not a symptom of hyperkalemia. Instead, hyperkalemia typically leads to decreased neuromuscular excitability, resulting in diminished reflexes and muscle strength. This is critical in understanding the clinical manifestations of hyperkalemia and differentiating them from other potential complications that may arise from alternative conditions affecting the electrolyte balance.