Heme Extras Flashcards
albanism, photophobia, lysosome dysfunction
chediak-higashi
large platelets, seen in May Heggin
macrothrombocytopenia
LDH
enzyme released in tissue damage, high in TTP
gallstones (cholelithiasis) seen in
spherical and elliptical RBC syndromes
Heinz bodies
round inclusions of denatured hemoglobin in RBCs
G6PD deficiency
misshaped hemoglobin due to beta-delta crossover
Hb lepore (unstable)
lysis in liver or spleen
extravascular hemolysis. intra is complement or mechanical
regulates complement system, low level means RBC lysis
CD55/59 (PIGA mutation means PNH)
complement-inhibiting Ab, treats PHN
ecuzimab
phototherapy
oxidizes bilrubin, prevent kernicterus in HDN
CD20 Ab, gets rid of B cells, treats TTP, ITP, C/WAIHA
Rituximab
Donath-Landstiener +
PCH
complexes w/5, 9, VWf for platelet adhesion
Gp1b
increases in inflammation, decreases S
Cb4, procoagulant
ADAM doesn’t chop up VWf
small clots form (TTP)
only sign is increased PT, appears during surgery
Hemophilia C
Comes with clotting and renal disease
PNH
huge platelets and petechiae
ITP
HIV, EBV/CMV, steroids, immunocompromise, chemo, hodgkins
lymphocytopenia
penicillin, EtOH, chemo, immunocompromise
med-induced thrombocytopenia
CVD, IBD, infection, cancer, thyroid disease, renal failure, familial mediterranean fever
anemia of chronic disease
rare cold Ig
PCH
PIGA mutation
PNH
false + RPR (syphilis)
Antiphospholipid Antibody Syndrome
aquired clotting disorder
secondary to EMV, HIV, EBV, mycoplasma
CAIHA
caused by malnutrition or antibiotics
vitamin K deficiency (bleeding)
aspirin, NSAIDS, ADPris, EtOH cause
poisoned platelets (won’t stick: bleeding)
manage with washed RBCs if severe, prophylax with antihistamine
mild urticaria
minimize with leukodepleted products
HLA sensitization
hepatic + K
2,7,9,10, C,S
hepatic, no K
11, antithrombin
source: endothelial cells
vWF, 8
measure intrinsic pathway
aPTT
measure extrinsic pathway
PT
normal aPTT, PT
platelet disorders, 13 deficiency, hyperfibrinolysis