9/11/2023 0 Comments Ecg signs of hyperkalemia![]() ![]() Potassium excess: due to altered K + metabolism or intake.Serum K + should be monitored closely until it is corrected. In refractory cases, dialysis may be required. Management depends on the severity of the hyperkalemia and includes restriction of dietary K +, as well as medications to bind, shift, or eliminate K +, or to stabilize the cardiac membrane (e.g., calcium gluconate) if necessary. It is, therefore, essential to obtain an ECG to determine the level of cardiotoxicity. These changes can lead to life-threatening cardiac arrhythmias. Acute increases in serum K + are very dangerous, as they influence the resting membrane potential and thus the electrical excitability of cells. To determine the underlying cause of hyperkalemia, it is essential to review the patient's medications, check kidney and endocrine function, and screen for cell lysis (e.g., hemolysis, rhabdomyolysis) and acid-base disorders. Serum potassium (K +) is often falsely elevated due to the method of sampling and levels should be confirmed with repeat testing. It can also be caused by acidosis, cell breakdown, endocrinological disturbances (e.g., hypoaldosteronism, hypocortisolism), and drugs such as potassium-sparing diuretics, angiotensin-converting enzyme ( ACE) inhibitors, nonsteroidal antiinflammatory drugs ( NSAIDs), and digoxin. ![]() The most common cause is decreased kidney function. Hyperkalemia (high serum potassium) is a common and potentially life-threatening disorder of potassium balance. ![]()
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