Blood and Marrow Flashcards
Cytopenias are due to either ____ or _____.
increased destruction; decreased production
Petechiae are indicative of ____.
thrombocytopenia
____ are indicative of thrombocytopenia.
Petechiae
What is the autoimmune destruction of platelets called?
Immune Thrombocytopenic Purpura (ITP)
What is Immune Thrombocytopenic Purpura (ITP)?
the autoimmune destruction of platelets
Name 2 alloimmune causes of thrombocytopenia.
1) post-transfusional thrombocytopenia
2) neonatal thrombocytopenia
Name a drug that causes thrombocytopenia.
Quinidine
What is quinidine?
an antiarrhythmic; causes thrombocytopenia
Name 2 causes of non-immune/mechanical destruction of platelets.
1) disseminated intravascular coagulation (DIC)
2) mechanical heart valves/pumps
What is DIC?
widespread activation of the clotting cascade