<prompt> Absent P waves with wide QRS complex indicates serum potassium of5.4 meqL6.5 meqLMore than 8 meqLMore than 1O meqL  <response>: Hyperkalemia Couesy of Dr. Michael McCrea a. Tall hyperacute T wave earliest ECG finding b. Prolonged PR interval c. Flattened or absent P wave d. Wide QRS complex that eventually blends with the T wave to assume a sine wave appearance e. Hea blocks f. QT interval normal or shoened Ref: guyton and hall textbook of medical physiology 12 edition page number:184,185,186 