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以下可出现外周红细胞绝对性增多的是()

单选题
2021-08-30 16:30
A、妊娠中、后期
B、产后大出血
C、急性溶血
D、高原居民
E、6个月~2岁婴幼儿
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正确答案
D

试题解析
红细胞绝对性增多可见于以下情况:①继发性:生理性见于新生儿及高原生活者;病理性见于阻塞性肺气肿、肺源性心脏病、发绀型先天性心脏病等。②原发性:见于真性红细胞增多症。红细胞生理性减少见于妊娠中、后期,6个月~2岁婴幼儿,老年人。产后大出血、急性溶血引起红细胞病理性减少

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