<prompt> In hyperkalamia -a Serum level 5.5 meqLb Serumlevel 6.5 meqLc T. wave inversiond Peaking of T. wavee Venticular fibrillationacdadeabdad  <response>: Electrocardiographic manifestations of hvperkalemia :ECG changes often do not correlateQ with the degree of hyperkalemiaE.C.G changes suggestive of an effect of hyperkalemia on cardiac conduction include :Peaked T waves tall tented T wavesQ- Prolongation of the PR intervalQWidening of the QRSQ- Loss of the P waveQSine wave patternQSinus arrestQIn patients with organic heart disease and abnormal baseline ECG, bradycardia may be the only new ECG abnormality.Hyperkalemia may ultimately lead to cardiac arrest asystole or Ventricular fibrillationHyper kalemia is defined as serum potassium 5 meqL. 