disorders of the blood Flashcards
what are the functions of the blood?
transport of nutrients
removal of waste
transport host defences
what is the function of RBC’s?
carry O2
what is the function of WBC’s?
body defences and repair
what is the function of plasma?
transports nutrients and medicine
what are the constituents of the blood?
cell component plasma proteins -albumin -globulin lipids nutrients water
what does FBC mean?
full blood count
what does WCC mean?
white cell count
what does PLT mean?
platelets
what does HCT mean?
haematocrit
what does MCV mean?
mean cell volume
what is anaemia?
low Hb
what is leukopenia?
low WCC
what is thrombocytopenia
low platelets
what is pancytopenia?
all cells reduced
what does multiple blood changes mean?
bone marrow failure
what is polycythaemia mean?
raised hb
what does leukocytosis mean?
raised WCC
what does throbocythaemia mean?
raised platelets
what does more than one of polycythaemia, leukocytosis, and throbocythaemia mean?
pre-neoplastic
what is leukaemia?
neoplastic proliferation of white cells
usually disseminated
what is lymphoma?
neoplastic proliferation of white cells
usually a solid tumour
what is porphyria?
abnormality of haem metabolism
what are the clinical effects of porphyria?
photosensitive rash neuropsychiatric disturbance in acute attacks -motor & sensory changes, seizures -autonomic disturbances hypertension & tachycardia