妊娠期血容量增加达高峰是在A. 24?26周 B. 27?28周 C. 29?30周 D. 32?34周 E. 36?40周

作者: tihaiku 人气: - 评论: 0
问题 妊娠期血容量增加达高峰是在
选项 A. 24?26周 B. 27?28周 C. 29?30周 D. 32?34周 E. 36?40周
答案 D
解析 循环血容量于妊娠6周开始增加,至妊娠32?34周达高峰,约增加30%?45%,平均约增加1500ml,维持此水平直至分娩。

相关内容:妊娠,期血,容量,高峰

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