V2EX petechiae

Petechiae

Definition(释义)

petechiae(复数名词)指瘀点/出血点:皮肤或黏膜上出现的针尖样、红色或紫红色小点,通常由毛细血管轻微出血引起,按压一般不褪色。常见于感染、血小板减少、凝血异常、剧烈咳嗽/呕吐后等情况。(单数:petechia

Pronunciation(发音,IPA)

/ptiki.a/ (美式常见)
/ptkii/ (英式常见)

Examples(例句)

I noticed small petechiae on my arm after scratching.
我抓挠后注意到手臂上出现了小小的瘀点。

The doctor ordered blood tests because petechiae can be a sign of low platelets or infection.
医生安排了验血,因为瘀点可能提示血小板偏低或感染。

Etymology(词源)

来自新拉丁语 petechia,源头可追溯到意大利语 petecchia(意为“皮肤上的小斑点/小疹点”)。该词在医学语境中逐渐固定,用来指特定的“点状出血”。

Related Words(相关词)

Notable Works(作品与典籍中的用例)

  • Harrison’s Principles of Internal Medicine(《哈里森内科学》)
  • Robbins and Cotran Pathologic Basis of Disease(《罗宾斯科特兰病理学》)
  • The Merck Manual(《默克手册》)
  • Gray’s Anatomy(《格雷解剖学》)
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