hematology Flashcards
(31 cards)
hematology?
an area of medicine concerned with study of the cellular elements.
WBC?
white blood cells
RBC?
red blood cell
White blood cells?
leukocytes
red blood cells?
erythrocytes
platelets?
thrombocytes
hemostasis?
coagulation and fibrinolysis
hematology test can be?
quantitative or qualitative
function of blood circulation?
deliver o2, nutrients, water and hormones to tissue and cells. remove co2, waste from tissue cells. regulate body temp, protection against infection.
arteries?
carry oxygenated blood, thick walled, elastic and muscular.
veins?
carry deoxygenated blood, not as thick as arteries.
capillaries?
carry deoxygenated blood, not as thick as arteries.
composition of blood?
5L in normal adults, plasma 50-60% whole blood volume, more than 90% water
cells rbc?
rbc=most numerous hemaglobin transport 02 to tissue and co2 to lungs.
cells wbc?
least numerous, associated with immunity and defense from infection.
cells platelets?
important in hemotosis, formation of platelet plug, release of chemical in coagulation cascade.
hematopoiesis?
most formed in bone marrow, allblood cells derived from the hematopoietic stem cell.
hematological disease?
leukemia, anemia, thrombocytopenia
leukemia?
produce to many WBCs
anemia?
decrease of RBCs, blood lost
thrombocytopenia?
decrease number of plalets.
diseases can be inherited ?
true
anticoagulants?
EDTA, lavender vacutainer
coagulants?
sodium citrate, light blue tube vacutainer, critical fill.