What is the role of a CBC count in the diagnosis of acute pericarditis?

Updated: Apr 02, 2019
  • Author: Sean Spangler, MD; Chief Editor: Terrence X O'Brien, MD, MS, FACC  more...
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Obtain a CBC count with a differential. Significant leukocytosis may be present with an either inflammatory or infective cause of pericarditis. 

Also, determine prothrombin time/activated partial thromboplastin time (PT/aPTT) and, if abnormal, correct in order to lessen the chance of developing tamponade.

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