<prompt> Sine wave pattern in E.C.G is seen in-HypokalemiaHyperkalemiaHyponatremiaHypermatremia  <response>: Classically, the electrocardiographic manifestations in hyperkalemia progress from tall peaked T waves 5.5-6.5 mM, to a loss of P waves 6.5-7.5 mM to a widened QRS complex 7.0-8.0 mM, and, ultimately, a to a sine wave pattern 8.0 mM. REF: HARRISON, 19e, Pg 310 