Haem/ Onc Flashcards
DVT Ix
Wells <2 = D Dimer
Wells >2 = US leg if within 4 hours. If >4 hours then Tx anticoag
Von Willebrand disease clotting profile
mildly elevated APTT
Tumour lysis syndrome
risk factors
electrolyte imbalance
prophylaxis
RF - lymphoma/ leukaemia, chemotherapy
hyperKal, hyperPhos, hypoCal
Tx - allopurinol, rasburicase
Thrombotic sickle cell crisis (AKA painful/ vaso-occlusive)
painful
precipitated by dehydration, infection
Aplastic crisis
caused by parvovirus
sudden fall in haemoglobin
sequestration crisis
splenomegaly + abdominal pain
Chronic myeloid leukaemia Mx
Imatinib (tyrosine kinase inhibitor)
Peutz Jeghers syndrome Fx
pigmented lesions buccal mucosa
gastrointestinal polyps
Reed Sternberg cells positive
Hodgkins lymphoma
Philadelphia chromosome (T9;22)
chronic myeloid leukaemia
Macrocytic anaemia
megaloblastic
B12 def - pernicious anaemia
terminal ileum resection
gastrectomy
folate def - coeliac
drugs - sulphonamide
Macrocytic anaemia
Normoblastic
liver disease
alcoholism
HYPOthyroid
myelodysplasia
drugs - anticonvulsants
Acute haemolytic transfusion reaction (ABO incompatability)
acute symptoms (bag still running)
burning at IV site
fever, flushing, restless, chest tightness
Non haemolytic transfusion reaction
symptoms near end of bag, or 2 hours afterwards
fever, malaise, dyspnoea
Chronic myeloid leukaemia Mx
Imatinib