One gram of 10% calcium gluconate is 1000 mg/10 mL; 9.3% of that is elemental calcium. Thus, there are 93 mg of elemental calcium in 10 mL of 10% calcium gluconate. For tetany or seizures, 1–3 mL can be given via slow intravenous push over 5–10 min with no more than 2 mg ...