A) This statement is incorrect. Hypertension (high blood pressure) is a common complication of kidney disease, but it is not the primary indication for initiating dialysis. Dialysis is primarily indicated to address the impaired filtration and waste removal functions of the kidneys, which can lead to electrolyte imbalances like hyperkalemia.

B) This statement is incorrect. Hypercalcemia (elevated calcium levels) is not a primary indication for initiating dialysis. While calcium imbalances can be associated with kidney disease, hyperkalemia takes precedence as a more critical indication for dialysis initiation.

C) This statement is accurate. Hyperkalemia (elevated potassium levels) is a critical indication for initiating dialysis. Dialysis helps remove excess potassium from the bloodstream when the kidneys are unable to do so, preventing potentially life-threatening complications.

D) This statement is incorrect. Hypokalemia (low potassium levels) is not an indication for initiating dialysis. In fact, dialysis may lead to a reduction in potassium levels, and clients on dialysis are more likely to experience hyperkalemia.