121214 cases Flashcards
giant platelets are characteristic of
ITP
mucocutaneous bleeding
generally able to see
course of ITP in child vs adult?
in children-resolves more frequently. caused commonly by viruses
in aduldts-can get chronic form (from viruses, autoimmune conditions, drugs)
tx for ITP?
initially: corticosteroids
IVIG
if refractory: splenectomy (spleen is site of platelet destruction and the primary source of Ig)
D dimer
clot production and breakdown
when doing a question on bleeding, what to consider FIRST?
mucocutaneous or deep bleeding?
ITP vs DIC in terms of how pt looks
ITP-relatively ok
DIC-not well
how to separate out hemophilia from von willebrand dis
von willebrand–mucosal bleeding
hemophilia–deep tissue bleeding
if have history of mucosal bleeding and normal PT&PTT, what tests should you do?
consider PFA-100
then tests of von Willebrand factor
inheritance pattern of hemophilia
X linked recessive
hemophilia–which factors?
8 and 9
desmopressin (DDAVP) is used for
von Willebrand’s disease
it promotes vWF release from endothelial cells
in severe dis, may use viral-inactivated VWF-FVIII concentrate
types of bleeding in secondary hemostasis defect
joint bleeding-hemarthrosis muscle hemorrhage soft tissue life threatening bleeding surgery
if pt has very heavy periods, what can result?
iron deficiency anemia
clinical symptoms of von willdbrand dis
mucosal bleeding, esp epistaxis and menorrhagia
post-op bleeding
bleeding from oral cavity
gastrointestinal bleeding