A、总血钙<1.5~1.63mmol/L(6~6.5mg/dl);钙离子<0.75mmol/L(3mg/dl)
B、总血钙<1.63~1.75mmol/L(6.5~7mg/dl);钙离子<0.88mmol/L(3.5mg/dl)
C、总血钙<1.75~1.88mmol/L(7~7.5mg/dl);钙离子<1.0mmol/L(4mg/dl)
D、总血钙<1.88mmol/L(7.5mg/dl);钙离子<1.13mmol/L(4.5mg/dl)
E、总血钙<2~1.33mmol/L(8~8.5mg/dl);钙离子<5mg/dl(<1.3mmol/L)