Hypocalcemia is low calcium levels in the blood serum. The normal range is 2.1–2.6 mmol/L (8.8–10.7 mg/dl, 4.3–5.2 mEq/L) with levels less than 2.1 mmol/l defined as hypocalcemia. Mildly low levels that develop slowly often have no symptoms. Common causes include hypoparathyroidism and vitamin D deficiency.
Numbness or tingling around the mouth
or Numbness or tingling in hand
or Numbness or tingling in shoulders arms or hands
or Numbness or tingling in legs, feet, or buttocks
A sudden and temporary alteration of muscle tone, movements or behavior
Low blood pressure
or Child is constantly crying
or Swallowing difficulties
Cough with mucus or without mucus
or Whistling breathing
Vitamin D deficiency
Too little parathyroid hormone
If you have Hypocalcemia, then visit a general internist as soon as possible.