4th Year Additions Flashcards

(85 cards)

1
Q

what is irradiated blood?

A

blood that has been treated with radiation to prevent transfusion associated graft versus host disease

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2
Q

who needs CMV negative blood?

A

pregnant women and foetus

granulocyte transfusions

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3
Q

what is anisocytosis?

A

variation in size of RBCs

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4
Q

what are target cells seen in?

A

iron deficiency anaemia

post-splenectomy

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5
Q

what are heinz bodies seen in?

A

G6PD deficiency

alpha thalassaemia

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6
Q

what are Howell-Jolly bodies seen in?

A

spleen problem

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7
Q

when does the reticulocyte increase?

A

haemolytic anaemia

acute blood loss

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8
Q

what are schistocytes?

A

fragments of RBCs and indicate damage in their journey through vessels

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9
Q

causes of schistocytes?

A
DIC
HUS
TTP
MAHA
haemolytic anaemia
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10
Q

what are sideroblasts seen in?

A

myelodysplastic syndrome

sideroblastic anaemia

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11
Q

what are smudge cells seen in?

A

CLL

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12
Q

what are spherocytes seen in?

A

hereditary spherocytosis

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13
Q

inherited haemolytic anaemias

A
hereditary spherocytosis
hereditary elloptocytosis
thalassaemia
sickle cell anaemia
G6PD deficiency
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14
Q

acquired haemolytic anaemias

A

AIHA
PNH
MAHA
prosthetic valve-related

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15
Q

how does tumour lysis syndrome cause AKI?

A

raised urate

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16
Q

what is MALT lymphoma associated with?

A

H. pylori

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17
Q

what is smouldering myeloma?

A

progression of MGUS

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18
Q

investigations for myeloma

A

BLIP

  • BJP
  • light chain assay
  • immunoglobulins in serum
  • protein electrophoresis of serum
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19
Q

what does thalidomide increase the risk of?

A

VTE

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20
Q

what is TTP (thrombotic thrombocytopenia purpura)?

A

small blood clots form throughout the body causing thrombocytopenia

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21
Q

what causes clot formation in TTP?

A

problem with protein ADAMTS13

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22
Q

RFs for development of TTP

A

obesity

pregnancy

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23
Q

management of TTP

A

plasma exchange with FFP

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24
Q

what is heparin-induced thrombocytopenia (HITT)?

A

development of Ab against platelets in response to exposure to heparin
target PF4

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25
management of HITT
use different anticoagulant
26
anticoagulation choice in pregnancy?
LMWHs | if recurrent PEs consider IVC filter
27
female iron requirements daily
1.5mg/day
28
male iron requirements daily
1mg/day
29
pregnancy iron requirements daily
7.5mg/day
30
who usually gets Gaucher's disease?
Jewish inheritance
31
genetic inheritance of Gaucher's disease?
AR
32
what is Gaucher's disease?
glucocerebrosidase accumulates and lipids cannot be broken down leading to deposits in organs
33
presentation of Gaucher's disease
skeletal blood abdominal complaints
34
management of Gaucher's disease
enzyme replacement therapy of GBA enzyme
35
who get's Tay-Sachs disease?
Jewish people
36
inheritance of Tay-Sachs disease?
AR
37
what is Tay-Sachs disease?
genetic defect in hexosaminidase A gene which causes a deficit beta-hexosamindase A leading to accumulation of fatty deposits that damage brain and spinal cord
38
presentation of Tay Sachs
6 months with loss of vision and hearing, dysphagia, muscle weakness
39
three forms of Tay Sachs
infantile juvenile late onset/adult
40
management of Tay Sachs
supportive + manage complications
41
what is the inheritance pattern of Niemann-Pick disease?
AR
42
what is Niemann-Pick disease?
abnormal sphinogmyelin degradation leading to cells being unable to metabolise cholesterol and lipids
43
presentation of Niemann-Pick disease
contraction difficulty walking sleep disturbance
44
management of Niemann-Pick
measure blood and skin biopsies to assess levels
45
antibody in warm AIHA?
IgG
46
antibody in cold AIHA
IgM
47
types of blood transfusion reactions
1. non-haemolytic febrile reaction 2. minor allergic reaction 3. anaphylaxis 4. acute haemolytic reaction 5. transfusion-associated circulatory overload (TACO) 6. transfusion-related acute lung injury (TRALI)
48
what causes a non-haemolytic febrile reaction?
antibodies reacting with white cell fragments in the blood product and cytokines that have leaked from blood cells during storage??
49
presentation of non-haemolytic febrile reaction
fever | chills
50
management of non-haemolytic febrile reaction
slow or stop transfusion paracetamol monitor
51
presentation of minor allergic reaction
pruritus | urticaria
52
management of minor allergic reaction
temporarily stop transfusion antihistamine monitor
53
management of anaphylaxis
stop transfusion IM adrenaline ABC support - oxygen + fluids
54
what causes an acute haemolytic reaction?
ABO incompatibility
55
presentation of acute haemolytic reaction
fever abdo pain hypotension
56
management of acute haemolytic reaction
check blood, patients blood and send for DAT testing, repeat crossmatching fluid resuscitation
57
what causes transfusion-associated circulatory overload? (TACO)
excessive rate of transfusion | pre-existing heart failure
58
presentation of TACO
pulmonary oedema | hypertension
59
TACO management
slow or stop transfusion consider IV loop diuretics (furosemide) oxygen
60
what causes transfusion-related acute lung injury (TRALI)?
non-cardiogenic pulmonary oedema thought to be secondary to increased vascular permeability by host neutrophils activated by substances in donated blood
61
presentation of TRALI
hypoxia pulmonary infiltrates on CXR fever hypotension
62
management of TRALI
stop transfusion oxygen supportive care
63
what does cryoprecipitate contain?
``` factor VIII:C von willebrand factor fibrinogen factor XIII fibronectin ```
64
what is the preferred anticoagulant in renal impairment?
apixaban
65
can Coeliac disease cause hyposplenism?
yes
66
what does raised LDH indicate?
haemolysis
67
transfusion thresholds
Hb <70g/L without ACS | Hb <80g/L with ACS
68
myeloma management pathway
suitable for transplant= brotezomib + dex unsuitable= thalidomide + alklayting agent + dex chemotherapy before stem cell transplant
69
what is used to prevent relapses in myeloma?
bortezomib
70
genetic mutation in acute promyelocytic leukaemia
t(15;17)
71
what is seen on blood film in acute promyelocytic leukaemia
auer rods
72
what genetic change is in mantle cell lymphoma?
t(11;14)
73
VTE management if Wells score 0-1
check d-dimer if negative consider an alternative diagnosis if positive get scan within 4 hours
74
d-dimer high but scan negative VTE management
stop interim anticoagulation and repeat 6-8 days later
75
treatment time length for VTE?
3 months provoked | 6 months unprovoked
76
criteria for platelet transfusion
<10 x 10^9 no bleeding <30 x10^ 9 minor bleeding <100 x 10^9 in severe/ critical site
77
presentation of acute intermittent porphyria
red urine on standing | neuro, abdo, etc
78
what is Wiskott-Aldrich syndrome?
defect in WASP gene x-linked recessive low IgM
79
types of Hodgkin's lymphoma
``` nodular sclerosing (most common - lacunar cells) mixed cellularity lymphocyte predominant (best prognosis) lymphocyte depleted (worst prognosis) ```
80
what is the most common type of lymphoma?
large dffuse B cell lymphoma
81
what is on microscopy in Burtkitt's?
starry sky
82
when in hydroxyurea used in sickle cell?
prevent further crisis
83
what can packed red cells increase?
k+
84
drug causes of G6PD deficiency
sulph drugs - sulphonamides, sulphasalazine and SUs | malaria prophylaxis
85
what reverses rivaroxaban and apixaban?
andexanet alfa