35.3 Anaemia Flashcards
at birth what is the Hb/MCV/MCH relative to adult?
all higher than normal the begins to drop off
when is the nadir for Hb/MCV/MCH
2 months
2 things to looks at when you see a low haemoglobin
MCV
Reticulocyte count: are they producing?
iron deficiency anaemia, if ferritin is what level = diagnostic?
<10ug/L
ferritin goes up in?
infection
malignancy
liver disease
how much iron to treat anaemia?
6mg/kg/day of elemental iron
1ml/kg/day of ferro-liquid
treatment for 3 months
when to check for response with iron therapy?
1-2 weeks
restrict milk in anaemia?
500ml
how to tell if child has cow’s milk protein intolerance?
hopyalbuminaemic
bleeds from gut
managed by boiling cow’s milk
when do alpha chain disorder manifest?
birth, persists throughout life
when do beta chain disorder manifest?
3-6months persists
when do gamma chain disorder manifest?
birth, declines after
what is thalassaemia intermedia?
can be homozygous or variety, not requiring transfusions
problem with transfusion dependent thalassaemia?
iron overload,
need chelator, daily
what to investigate if think thalassaemia?
FBC
Film
HB electrophoresis/Hb studies
Ferritin
2 main causes of megaloblastic anaemia?
B12 - deficiency in mother -vegans -missing ileum -selective malabsorption Folate - not as much
why do ppl with hereditary spherocytosis get more gallstones?
increased breakdown of RBCs, more bilirubin, more load on liver
hereditary spherocytosis bad complication?
aplastic crises secondary to parvovirus
what happens in a G6PD attack?
- oxidative hemolysis
- get brown urine
- jaundice
if G6PD is x-linked, how do girls get it?
- homozygous
- turner’s
- girls’ inactivate one of their Xs early on
- balance translocation
G6PD, 2 things life-threatening?
- fava beans
- naphthalene
what is diagnostic on blood film for G6PD?
bite and blister cells and irregularly contracted cells
who to look for if suspect sickle cell?
- african
- middle eastern descent
- abdo pain and leg pain
when to refer to paed haematologist?
- macrocytic anaemia
- haemoglobinopathies
- haemolytic anaemias
- anaemia+splenomegaly
- anaemia with neutropenia/thrombocytopenia
iron supplementation in thalassemia?
NOPE
contraindicated, iron overload