haem high yield Flashcards
(73 cards)
causes of microcytic anaemia
TAILS
thalassaemia
anaemia of chronic disease
Iron deficiency
Lead poisoning
Sideroblastic
causes of macrocytic anaemia
megaloblastic
-folate deficiency
-B12 defiency
non-megaloblastic
-alcohol
-liver
-hypothyroidism
-reticulocytosis
-cold-agglutinins
-aplastic anaemia
raised HbA2
beta thal trait and beta thal major
hair on end skull x-ray
B thal major
HbA, <50% HbS
sickle cell trait
HbS, no HbA
sickle cell anaemia
pulmonary infiltrates in someone with sickle cell
acute chest syndrome
treatment of sickle crisis
opiate analgesia
hydration
rest
oxygen
red cell exchange in severe
which drug can reduce severity of sickle cell disease
hydroxycarbamide
which vaccine for sickle cell people
pneumococcal every 5 years
causes of intravascular haemolysis
ABO incompatible blood transfusion
severe malaria
G6PD deficiency
autoimmune haemolysis
warm - IgG
cold - IgM (activate at cold temperatures)
LDH in haemolysis
raised
managament of autoimmune haemolytic anaemia
- Blood transfusions
- Prednisolone (steroids)
- Folic acid
- Rituximab (a monoclonal antibody against B cells)
-Splenectomy
treatment of secondary iron overload
desferrioxamine
pernicious anaemia
cause of B12 deficinecy
-antibodies against parietal cells or intrinsic factor
-atrophic gastritis: no intrinsic factor
can predispose to gastric cancer
treatment for severe thrombocytopenia in ITP
prednisolone
IV immunoglobins
blood transfusion
treatment of ITP in adults
oral prednisolone first line
IVIG may be used
what does vWF do
helps platelet adhesion in primary homeostasis
carries factor 8 (intrinsic pathway)
coag tests for vWF deficiency
APTT may be normal or prolonged if factor VIII deficiency is present
-PT will be normal
what clotting factors does vit K help make
2,7, 9 and 10
what is wafarin
vitamin K antagonist
haemophilia A
favtor VIII deficiency
haemophilia B deficiency
factor 9 deficiency