问题
单项选择题
测中心静脉压时，测压玻璃管的零点应取平于
A．锁骨中点
B．右心房中点
C．右心室中点
D．剑突
E．胸骨柄
答案
参考答案：B
解析：零点调节：将测压管刻度上的“0”调到与右心房相平行(相当于平卧时腋中线第四肋间)水平处，或者用水平仪标定右心房水平在测压管上的读数，该读数就是零点。
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测中心静脉压时，测压玻璃管的零点应取平于
A．锁骨中点
B．右心房中点
C．右心室中点
D．剑突
E．胸骨柄
参考答案：B
解析：零点调节：将测压管刻度上的“0”调到与右心房相平行(相当于平卧时腋中线第四肋间)水平处，或者用水平仪标定右心房水平在测压管上的读数，该读数就是零点。
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