单选题引起手足搐搦发作时总血钙浓度一般低于( )。A1.5~1.63mmol/L(6~6.5mg/dl)B1.63~1.75mmol/L(6.5~7mg/dl)C1.75~1.88mmol/L(7~7.5mg/dl)D1.88~2.0mmol/L(7.5~8mg/dl)E2.0~2.13mmol/L(8~8.5mg/dl)
单选题
引起手足搐搦发作时总血钙浓度一般低于( )。
A
1.5~1.63mmol/L(6~6.5mg/dl)
B
1.63~1.75mmol/L(6.5~7mg/dl)
C
1.75~1.88mmol/L(7~7.5mg/dl)
D
1.88~2.0mmol/L(7.5~8mg/dl)
E
2.0~2.13mmol/L(8~8.5mg/dl)
参考解析
解析:
当总血钙浓度低于1.75~1.88mmol/L(7~7.5mg/dl)或血清钙离子浓度降至1mmol/L(4mg/dl)以下时,即可引起手足搐搦症。
当总血钙浓度低于1.75~1.88mmol/L(7~7.5mg/dl)或血清钙离子浓度降至1mmol/L(4mg/dl)以下时,即可引起手足搐搦症。
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引起手足搐搦发作时,血清总钙浓度低于A.1.75~1.88mmol/LB.7.0~7.5 mmol/LC.2.25~2.75mmol/LD.1.88~2.75mmol/LE.1.0mmol/L
引起手足搐搦发作时总血钙浓度一般低于( )。A.1.5~1.63mmol/L(6~6.5mg/dl)B.1.63~1.75mmol/L(6.5~7mg/dl)C.1.75~1.88mmol/L(7~7.5mg/dl)D.1.88~2.0mmol/L(7.5~8mg/dl)E.2.0~2.13mmol/L(8~8.5mg/dl)
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