The severity of hypocalcemia depends on the blood calcium level and the manifestations of the condition. It is more serious if there are manifestations such as convulsions of the hands and feet and seizures.
Hypocalcemia is defined as blood calcium below 2.15 mmol/L. Generally speaking, convulsions may occur when blood calcium is between 1.75 and 1.88 mmol/L, and epileptic seizures may occur when it is lower than 0.88 mmol/L, even at the risk of life. If low blood calcium has no clinical symptoms, it is usually not serious. It is more serious if there are manifestations such as hand and foot twitching and seizures.
Hypocalcemia is common in hypoparathyroidism, chronic renal failure, and vitamin D deficiency. Hypocalcemia requires vitamin D and calcium supplementation, which can be treated with oral calcium and vitamin D supplements or intravenous infusion. If accompanied by low blood magnesium, magnesium supplementation may be needed if necessary. In addition, etiologic treatment is important, such as treatment to preserve the kidneys.
It is important to seek medical attention for low blood calcium and to use medication as directed by a doctor.