heme buzz words/ key points Flashcards

1
Q

iron deficiency

A
  • low fe, ferritin
  • high TIBC
  • pica, chelitis, tach
  • give Fe with stool softener
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2
Q

anemia of chronic disease

A
  • low FE, TIBC
  • high ferritin
  • high ESR/CRP
  • inflamm or endocrine dz
  • tx underlying condition
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3
Q

thalassemia general

A
  • normal Fe
  • dx: electrophoresis
  • tx: transfusion if major
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4
Q

alpha thalassemia smear

A
  • heinz bodies

- target cells

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5
Q

beta thalassemia smear

A
  • basophilic stippling
  • dacrocytes
  • target cells
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6
Q

sideroblastic anmeia

A
  • cant incorp Fe -> high Fe, ferritin
  • high RDW
  • low TIBC
  • tx: transfusion, Cu if needed
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7
Q

sideroblastic anemia smear

A
  • basophilic stippling
  • target cells
  • pappenheimer bodies
  • sideroblasts
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8
Q

hereditary spherocytosis

A
  • spherocytes
  • neg coombs
  • abnormal ankyrin and spectrin
  • tx: supportive, transfusion prn
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9
Q

AIHA lab findings

A
  • warm= IgG
  • cold= IgM
  • spherocytes
  • pos coombs
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10
Q

AIHA si/sx and tx

A
  • angina pectoris
  • splenomegaly
  • warm: prednisone
  • cold: avoid cold, retuximab
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11
Q

PNH lab findings

A
  • lack CD55/59
  • high hemosiderin
  • high LDH
  • Fe def
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12
Q

PNH si/sx and tx

A
  • episodic hemoglobinuria
  • thrombosis
  • pulm htn
  • tx: transfusion, eculizumab, steroids
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13
Q

G6PD def smear

A
  • bite cells

- heinz bodies

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14
Q

G6PD def

A
  • episodic hemolysis
  • dx 6-8 wks after episode
  • avoid triggers, transfusions if severe
  • triggers= fava beans, dapsone
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15
Q

benefits of G6PD def

A
  • protect vs malaria
  • less CAD
  • less CA
  • longer life
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16
Q

sickle cell dx

A
  • HgS on electrophoresis
  • sickled cells
  • howell- jolly
  • WBCs/ platelets elevated
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17
Q

si/sx of sickle cell

A
  • retinopathy
  • priapism
  • pain
  • poor healing ulcers
  • vaso-occlusive, hemolytic or infx crisis
  • trigger= deoxygenation
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18
Q

tx of sickel cell

A
  • analgesia
  • hydroxyurea
  • transfusions
  • hydration
  • VTE ppx
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19
Q

b12 def

A
  • lack of absorption
  • stores= 3 years
  • high MMA
  • low b12
  • neuro sx, vague GI sx
20
Q

folate def

A
  • dietary def or alcoholism
  • 2-3 mo stores
  • normal MMA
  • low folate
  • vague GI sx, no neuro sx
21
Q

aplastic anemia si/sx

A
  • cardiopulm compromise
  • recurrent infx
  • easy bleeding, petechiae
  • BM cellularity < 30% in 2 of 3 lines
22
Q

myelodysplatic syndrome

A
  • blasts < 20%

- preleukemia

23
Q

AML

A
  • auer rods
  • B sx, LAD, papilledema
  • chemo + radiation
24
Q

CML

A
  • BCR- ABL, Ph chromosome
  • hepatosplenomegaly
  • LAD
  • imatinib
25
ALL
- most common ca of kids - assoc with down syndrome - bleeding, bruising, secondary infx - b sx - neuro involvement- ppx
26
CLL
- most common in adults - B cells - 13p/ 17q - smudge cells - CD 19/20/23 - only follow up if early, then chemo - recurrent infx, LAD, b sx
27
hairy B cell
- CLL without LAD
28
MM
- lytic lesions, plasmacytosis > 30%, M spike - hyperCa, renal failure, anemia, bone lesions - usu fatal - rouleaux cells on smear
29
essential thrombocytosis
- plt > 450k - thrombotic or bleeding events - tx: plasmapheresis
30
polycythemia vera
- increased RBC dt JAK2 -> thick blood - primary: EPO indep - secondary: EPO dep "heart"- hypoxia, EPO tumor, adrenal, renal, testosterone
31
si/sx and tx of polycythemia vera
- TIA, high SBP - erythromelalgia with burning - aquagenic pruritis - high plt - tx: ASA, phlebotomy, hydroxyurea
32
follicular NHL
- waxing/ waning LAD
33
DLBCL NHL
- most common | - bulky LAD
34
burkitts NHL
- EBV in african kids - starry sky - MYC
35
T cell NHL
- precursor: thymus | - peripheral: dermis, GIT
36
hodgkins lymphoma
- reed sternberg cells - CD 30/15 - LAD painful with alcohol - cyclic fever - b sx - erythema nodosum
37
hemophilia
- A= 8 - B= 9 - C= 11 - spont bleeding, ecchymosis - hemarthrosis - elevated PTT - tx with recombinant factors
38
DIC
- bleeding and clotting - sepsis - purpura fulminants, thrombosis - bleeding - renal failure - prolonged PT/ PTT
39
thrombocytopenia
- platelets < 150k - spont bleeding, cutaneous bleeding - tx may need platelets
40
type 1 HIT
- related to heparins effects on platelets | - will normalize
41
type 2 HIT
- IgG binds PF4 -> thrombocytopenia
42
dx of HIT
- confirmed with ELISA | - 4t's: thrombocytopenia, timing of fall, thrombosis, other
43
vWD
- type 1: quantity - type 2: quality - type 3: none - tx: desmopressin for 1 and 2, transfusion for 3
44
ITP
- isolated thrombocytopenia - normal BM - Ab only present in 60% of pts - dx of exclusion - purpuric rash, bleeding - tx only if plt < 20-30k - tx= steroids, IVIG
45
TTP
- ADAMTS13 -> cant cleave vWF -> coag/ microthrombi/ RBC shearing - end result= ischemia - tx; plasmapheresis with FFP
46
pentad of TTP
- fever - anemia (hemolytic) - thrombocytopenia - renal failure - neuro sx - "fat rn"