Haem Flashcards
What is the best way to measure someones iron store level?
Serum ferritin
What type of cell on blood smear indicates myelofibrosis?
Tear drop cells (dacrocytes)
What conditions causes a schistocyte on blood smear?
Haemolytic anaemia, DIC
What conditions cause a spherocyte?
Haemolytic anaemia
Hereditary spherocytosis
What conditions cause a target cell?
Obstructive jaundice
Liver disease
Haemaglobinopathies
Hyposplenism
Pt post op who had 3 blood units. PC: fever, low BP, cyanosis, dry cough. Dx?
TRALI - tissue related lung injury
What is a TRALI?
2-6hrs after transfusion, neutrophils get sequestered in lungs and ABs form against donor WBCs. ABs then attack the pt’s lungs
How do you differentiate between immediate haemolytic transfusion reaction and a delayed haemolytic reaction?
IHTR < 24hrs post transfusion
DHR >24hr post transfusion
What are 2 differentials for megaloblastic anaemia?
B12 deficiency
Folate deficiency
Limb parasthesia and numbness. Hypersegmented neutrophils. Dx?
B12 deficiency
What is pernicious anaemia?
AI condition where ABs bind to intrinsic factor thus preventing B12 absorption
What condition is associated w pernicious anaemia?
Thyroid disease
What does PT vs PTT measure?
PT = extrinsic pathway PTT = intrinsic pathway
Normal PT and platelets. Abnormal PTT and bleeding time. Dx?
vWF deficiency
Normal bleeding time and platelets. Prolonged PT and PTT. DDx?
Factor V deficiency
Vitamin K deficiency
Warfarin therapy
Fever + neutropenia. Dx?
Septicaemia
Neutropenia, anaemia, thrombocytopenia. >20% myeloblasts. Dx?
AML
Neutropenia, anaemia, thrombocytopenia. >20% lymphoblasts. Dx?
ALL
Sx of thrombotic thrombocytopenia purpura?
PENTAD Fever Thrombocytopenia Microangiopathic haemolytic anaemia Renal failure Neuro Sx
Headaches, dizziness, severe pruritus after hot baths. Dx?
Polycythaemia vera