You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The first change takes place in ECG in hyperkalemia is and explain in detail?
(A) Tall T wave # Effects of Hyperkalemia on the ECG:> Serum potassium > 5.5 mEq/L is associated with repolarization abnormalities:> Peaked T waves (usually the earliest sign of Hyperkalaemia)> Vital for assessing the physiologic significance of the hyperkalemia> ECG findings generally correlate with the potassium level, but potentially life-threatening arrhythmias can occur without warning at almost any level of hyperkalemia> In patients with organic heart disease and an abnormal baseline ECG, bradycardia may be the only new ECG abnormality> ECG changes have a sequential progression, which roughly correlate with the potassium level> Early ECG changes of hyperkalemia, typically seen at a serum potassium level of 5.5-6.5 mEq/L, include the following:> Tall, peaked T waves with a narrow base, best seen in precordial leads> Shortened QT interval> ST-segment depression> At a serum potassium level of 6.5-8.0 mEq/L, the ECG typically shows the following: Peaked T waves Prolonged PR interval Decreased or disappearing P wave Widening of the QRS Amplified R wave> At a serum potassium level higher than 8.0 mEq/L, the ECG shows the following: Absence of P wave Progressive QRS widening Intraventricular/fascicular/bundle branch blocks> Progressively widened QRS eventually merges with the T wave, forming a sine wave pattern. Ventricular fibrillation or asystole follows.