Heme/Immune Flashcards
B12 def
neuro findings, high MCV
causes of B12 def
pernicious anemia (anti-IF Ab)
terminal ileitis
vegan
B12 def with normal B12
high homocysteine and methylmalonic acid
G6PD def
post sulfa drug hemolytic anemia
Hereditary Spherocytosis
mild anemia
high MCHC
splenomegaly
family history
Hyperhemolytic crisis
vaso-occlusion
splenic-sequestion
sickle cell patient profoundly anemic
Sickle Cell Complications
acute chest syndrome
salmonella osteomyelitis
avascular necoris of femoral head
Vaccines to give someone without spleen
pneumococcal
mening
Hib
(encapsulated)
TTP
fever, mental status changes
SCHISTOCYTES
renal dysfunction, low platelets
Cause of TTP
ADAM TS-13/vWF cleaving protease
CLL
older, massive LAD
spleen
WBC 30K with lymphs
CML
high WBC in all lines
mild illness
9:22/brc-abl translocation
CML treatment
imatinib
Acute promyelocytic leukemia
15:17 translocation
treat with all-trans-retinoic acid
Multiple Myeloma
anemia, renal failure, older
high Ca, high prot,albumin, narrow anion gap
Multiple Myeloma mechanism
osteoclast activating factors (Il-6)
ITP
post URI, normal WBC, HCT, platelets 5K
megakaroycytes on bone marrow biopsy
HUS
toxogenic E coli
child, bloody diarrhea than AKI
thrombocytopenia, anemia
Cis-platin/carboplatin
nephrotoxicity
acoustic nerve damage
Bleomycin/busulfan
pulmonary fibrosis
Vincristine
pierpheral neuropathy
Doxorubicin
cardiotoxicity
cyclophosphamide
hemorrhagic cystitis
Trastuzumab
mab against HER2, tyrosine kinase
CHF
Rituximab
ab against Cd-20
on most B cell neoplasms (NHL)
Omalizumab
anti-IgE
severe asthma
Bevacizumab
mab against VEGF
inhibits angiogenesis
Infliximab
anti TNF
crohn’s, RA
Abciximab
anti-glycorotein IIb/IIIa
some acute coronary syndromes
Type I Hypersensitivity
preformed antibody
igE mediated
immediate symptoms
examples of Type I hypersensitivity
allergy
atopy
anaphylaxis
Type II Hypersensitvity
cytotoxic rxns of Abs against cells or tissus
Examples of Type II hypersensitvity
Hemolytic anemia - Coombs
Goodpastures - antiGBM
Type III Hypersensitvity
ag-ab complex deposition in tissue
Examples of Type III hypersensitvity
Vasculitis
Sle,RA
serum sickness, post strep GN, Arthus reaction
Arthus reaction
edema
necrosis
activation of complement
Type IV Hypersensitivity
T cell mediated
delayed presentation, 24-48 hrs
Examples of Type IV Hypersensitivity
TB skin test
contact dermatitis/poison ivy
GvH
tight skin on face, hands, pulmonary fibrosis, esophageal dysmotility, renal disease
scleroderma - systemic sclerosis
Anti-Scl-70/anti-DNA topoisomerase 1
proximal muscle weakness
elevated CK
polymyositis
Anti-Jo-1
Asthma, eosinophilia, necrotizing vasculitis
Churgg-Strauss
P-ANCA
Autoimmune hepatitis
40 year old women
acute, very high transaminases, +ANA
anti-smooth muscle antibodies
anti-smooth muscle Abs
autoimmune hepatitis
anti-liver/kidney/microsomal
autoimmune hepatitis in children
Primary Biliary Cirrhosis
middle aged women
high alk phosphatase
liver dz
anti-mitochondrial Abs
anti-mitochondrial Abs
PBC
celiac disease symptoms
diarrhea, steatorrhea, wt loss
celiac labs
anti-tissue transglutaminase (igA)
anti-endomysial
Celiac path
blunting of intestinal villi
crypt hyperplasia
Agammaglobulinemia
Xlinked/Burton’s
infant boy, 4-6 months
encapsulated organism sepsis
absent B cells
Common Variable
young adult
recurrent sinusitis, pneumoa, bronchiectasis
splenomegaly, malignancies
GI malabsorption
Congential thymic dysplasia (Di George syndrome)
CHD/truncus arteriosus
hypoparathyroid
facial abnormalities
Low T cells
Recurrent Neiserria infections
terminal complment, C5-C9 deficiency
Chronic Granulomatous Disease
boy, chronic catalase + infections (Staph, Ecoli, Serratia, Aspergillus)
nitroblue terazolium
Chediak-Hegashi
AR chronic granulomatous disease
Oculocutaneous Albinism
chornic granulomatous Disease
Wiskott Aldrich
eczema, thrombocytopenia
X linked
combined B and T cell def
SCID
agammaglobulinemia
lymphopenia
infant
Cause of SCID
adenosine deaminase def
defected IL-2 receptors
Leukocyte adhesion def
infant recurrent bacterial infections persistent neutrophilia absent pus delayed separation of umbilical cord
transfusion
urticarial, pruritis, wheezing, fever
allergic rxn
type 1 hypersen
against plasma proteins in transfused blood
dyspnea, bronchospasm, hypotension, resp arrest, post tranfusion
anaphylactic rxn
IgA def patients get this from Abs to IgA after transfusion
fever, chills within 12 hours of transfusion
no hemolysis
febrile, nonhemolytic transfusion rxn
Type II, host antibodies veruse donor Ags and WBCs
(most blood banks remove WBCs now)
transfuion
fever, hypotension, flank pain, brown urine
immediate
acute hemolytic transfuion rxn
ABO mismatch
jaundice
slow hemolysis 1-2 weeks after transfusion
delayed hemolytic transfusion rxn
anti-Kell, Duffy
extravascular, previous exposure
shortness of air during transfusion
crackles
volume overload
fever, dyspnea, noncardiogenic pulmonary edema on CXR esp after FFP
transfusion associated acute lung injury