polycythemia of newborn

例句：

1. 1.The newborn baby was found with a high blood count, indicating the presence of polycythemia.
   这个新生儿的血液计数很高，表明患有多血症。
2. 2.Polycythemia of newborn is a rare but serious condition that requires immediate medical attention.
   新生儿多血症是一种罕见但严重的状况，需要立即医疗关注。
3. 3. In some cases, polycythemia of newborn can be caused by congenital heart defects or certain medications.
   在某些情况下，新生儿多血症可能由先天性心脏病缺陷或某些药物引起。