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【单选题】
女婴,4个月。两天内反复双目凝视伴四肢5~6次入院,每次发作仅数秒钟,病前轻度咳嗽,但无明显发热。病后吃奶减少一半,精神不如以前。生后一直配方奶喂养。检查:体温36.7°C,神萎,多睡,前囟稍饱满,颅缝无分离,颈无明显抵抗,Kernig征阴性,Babinski征阴性。为及早明确诊断,对该患儿最重要的检查A.
血培养
B.
血清钙测定
C.
腰椎穿刺
D.
脑电图
E.
血清镁测定
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A.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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