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NSG 229 Exam 4 With Complete Solution
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NSG 229 Exam 4 With Complete Solution...
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NSG 229 Exam 4 WithComplete Solution
What is hematopoiesis? - ANSWER production of blood cells in the red bone
marrow
how are red blood cells produced? - ANSWER erythropoiesis - activated by
erythropoietin
what is hemolysis? - ANSWER destruction of red blood cells
what is the main function of red blood cells? - ANSWER transport oxygen and
acid base balance
what is a band? - ANSWER an immature neutrophil
what would cause an increase in neutrophils? - ANSWER infection or tissue
injury
what is the main function of granulocytes? - ANSWER phagocytosis - the
process where white blood cells engulf unwanted organisms, digest and kill
them
what is a seg? (segmented neutrophil) - ANSWER a mature neutrophil
what are the two types of lymphocytes? - ANSWER t cells and b cells
what are natural killer cells? - ANSWER lymphocytes that kill and attack virus
infected cells
what is the main function of thrombocytes? (platelets) - ANSWER start the
,clotting process by producing an initial platelet plug at the site of injury
what is the life span of a platelet? - ANSWER 8-11 days
how are platelets affected by aging? - ANSWER platelets decrease
what happens to wbc with aging? - ANSWER they decrease in response to
infection
what increases in blood with aging? - ANSWER erythropoietin
d-dimers
erythrocyte sedimentation rate
ferritin
fibrinogen
what is leukopenia? - ANSWER decreased number of WBC count - 5,000 or
less
occurs with bone marrow depression, severe or chronic illness and other
types of leukemia
what is thrombocytopenia? - ANSWER low platelet count
what is neutropenia? - ANSWER low neutrophil count
what is thrombocytosis? - ANSWER high platelet count
what is a reticulocyte? - ANSWER immature red blood cell
what is the process of clotting? - ANSWER vascular injury
local vasoconstriction occurs immediately
platelet response is activated
, subendothelial exposure fills gaps
agrigation or adhesion (same thing) - plates join together
activation of the clotting cascade - platelets change shape when the begin to
clot
formation of blood clot
clot retraction and dissolusion
what are the most common s/s of iron deficient anemia? - ANSWER pallor -
most common
glossitis (swelling of tongue)- 2nd most common
inflammation of lips (cheilitis)
headache, paresthesias, burning sensation of the tongue
what are diagnostics of iron deficient anemia? - ANSWER low h&h
serum iron will be low
serum ferritin will be low
serum transferrin will be low
total iron binding capacity will be high
bilirubin will be low
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