Hypokalemia

• Neuromuscular:

• Muscle weakness, cramps, paresthesia, tetany, tenderness, rhabdomyalysis

• Cardiac:

• U wave, prolonged QT, VEA, Torsade de pointes

• GI:

• Constipation, ileus

• Renal:

• Nephrogenic DI, increased NH4 with metabolic alkalosis, renal cysts