Hypertention results from cutaneous flushing and is mediated through vasodilatation of vascular smooth muscle and inhibition of norepinephrine release by sympathetic postganglionic nerves. Hypocalcemia had been reported in some patients because of suppression of PTH. However, calcium acts as a direct antagonist to magnesium, and the intravenous use of calcium can reverse the potentially lethal respiratory and cardiovascular effects of hypermagnesemia.
The case patient underwant dialysis because of his hyperkalemia and high phosphate levels. Hyperkalemia