<prompt> Hypokalemia is defined as a plasma potassium concentration of3.5 mmolL3.6 mmolL3.7 mmolL3.8 mmolL  <response>: Hypokalemia, defined as a plasma K concentration of 3.5 mM, Hyperkalemia is defined as a plasma potassium level of 5.5 mM Ref: Harrison 19e pg: 305 