Haematology Flashcards
Purpose of the EDTA tube
EDTA acts as an anti-coagulant to the blood sample as it is chelates calcium
what are Erythrocytes
red blood cells
where are erythrocytes produced
bone marrow (5 days to make reticulocyte, baby erythrocytes)
what is haemolysis
the breakdown of red blood cells
what is corpuscular
cell volume
what is lipaemia
fatty blood lipids
what is a leukocyte
white blood cells
why don’t we freeze blood samples
will cause lysis of the cell (explode)
where do you examine blood cells on a blood smear
monolayer
what are we looking in the red blood cells in a smear examination
number
morphology
regeneration- life stages
what are we looking in the white blood cells in a smear examination
number
type presented
morphology
what are we looking in the platelets in a smear examination
clumps
number
morphology
what is a neutrophil
Most common white blood cell
what is a band neutrophil
immature neutrophils that are sent off to fight infection before they are ready
what are eosinophil associated with
allergies, parasites
what are basophil associated with
allergies, parasites
what is lymphocytes main identification
mostly nuclei with little cytoplasm
what are lymphocytes responsible for
immunity
what is a T cell
directly kill the targeted cell
what is haemostasis
the process of stopping the bleeding
what is petechiae
pinpoint brusing
what is the ecchymosis
brusing
what is melaena
dark faeces due to blood
what are erythrocytes responsible for
responsible for carrying oxygen and carbon dioxide
what are the clinical signs of anaemia
Mucous membranepallor
Lethargy
Exercise intolerance
Tachycardia (increased heart rate)
Tachypnoea (increased respiratory rate)
what does pica mean
eating soil due to lack of minitrials (eg. ion)
what does haematuria mean
blood in urine
what does haemoglobinuria mean
haemoglobin in urine
