RT Book, Section
A1 Hardin, J. Matthew
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181043799
T1 Immune Thrombocytopenia
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181043799
RD 2024/04/25
AB Immune  thrombocytopenia  (formerly  idiopathic  thrombocytopenic  purpura  [ITP])  occurs  because  of  platelet  injury  and  destruction.  Pinpoint,  red,  nonblanching  petechiae  or  nonpalpable  purpura  and  ecchymoses  are  found  on  the  skin  and  mucous  membranes,  either  spontaneously  (platelets  <  10,000/mm3)  or  at  the  site  of  minimal  trauma  (platelets  <  40,000/mm3).  Petechiae  are  commonly  found  on  dependent  areas.  Gingival  bleeding,  melena,  hematochezia,  menorrhagia,  and  severe  intracranial  hemorrhages  may  also  occur.  The  newly  diagnosed  form  affects  children  (peak  incidence  in  2-  to  4-year-olds,  equal  gender  distribution)  after  a  viral  illness  or  vaccination  and  completely  resolves  in  3  months.  The  chronic  form  occurs  most  often  in  adults,  with  women  outnumbering  men  and  a  prolonged  course  of  thrombocytopenia.