如果在硬膜外注射试验量后，患者立刻主诉头昏、头痛、心慌。

其处理措施最应该是（）。

A.立即放弃硬膜外麻醉

B.吸氧、给降压药

C.拔出导管改变间隙重新穿刺

D.后退导管少许至回抽无血

E.不用处理

Which of the following is the nurse's goal in crisis intervention

A．To provide medication to sedate the client.

B．To provide nondirective techniques such as free association.

C．To provide problem-solving techniques and structured activities.

D．To provide an insight-oriented analytic approach.