Thrombocytopenia Flashcards
loss platelet function + Antibody platelet destruction
Idiopathic thrombocytopenia purpura
Childhood ITP is due to?
infection
Adults - serious
ITP tx?
ICS, IVIG, Platelets, Splenectory, RhoGam, Rituximab
1) low platelets 2) anemia 3)fever 4) CNS 5) renal failure - FAT RN
Thrombotic thrombocytopenia purpura - FAT RN
Petechia, hemolyic anemia, HA, AMS
Thrombotic thrombocytopenia purpura
Low ADAMTs 13 (Little sissors), Clopidegral can cause
Thrombotic thrombocytopenia purpura and HIV
Path of Thrombotic thrombocytopenia purpura
Alot of small local clots - hemolytic anemia, and thrombocytopenia bc platelets are all stuck
gross hematuria, and splenomegaly
Thrombotic thrombocytopenia purpura
Thrombotic thrombocytopenia purpura tx?
PLASMAPHERISIS, ICS,
No Platelets
Kids with renal failure, hemolytic anemia and thrombocytic anemia (No fever, No AMS sxs)
HUS
HUS caused from
Ecoli 0157:H7 - shiga toxin
shiga toxin path?
endothelial damange - thrombin + firbin + platelets
TTP vs HUS
HUS does not wax and wane = always there.
HUS diag?
Stool for shiga, Urine for shige - schistocute, more Bili/LDH,
HUS tx?
Supportive, if oligouria - antibiotix. NO PLATELETS
drop in platelets <50,000 with LMWH is
HIT
Heparin works on?
LMWK works on?
Xa and formation of thrombin.
Xa.
HIT presents with?
PE, DVT, Adrenal clots = lots of clots, skin necrosis, MIs
HIT diag? 3 Ts
Thrombocytopenia, Time (4-14 days), thrombosis
HIT tx? LAB
Stop Heparin, no warfarin -
Give Lepi/Arga/Biva direct thrombin inhibitor.
Widespread microthombosis? Sepsis, trauma, snake bites
DIC
DIC diag?
increase D-dimer, High PT, low fibrinogen
DIC tx?
underlying cause + Plateles or LMWH
dz with decrease PT/INR?
DIC
hemolitic anemia dz?
TTP and HUS
Big spleen is only in
TTP
Low fibrinogen is only in
DIC
What disease gets platelets?
ITP and DIC
Does only HIT have clots?
yes
TTP gets?
FFP