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18 Cards in this Set

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amt of blood in avg adult?
4-6 L
breakdown of plasma to cellular components?
55% plasma (Proteins: albumin, globulin, fibrinogen; and electrolytes, nutrients, and waste products)


45% cellular components (RBC, WBC, platelets)
terms for overproleferation of WBCs?
Increase: Leukocytosis, lymphocytosis
what is a reticulocyte?

high levels of reticulocytes can signal...
immature RBC.

can signal recent blood loss.
primary stimulus to signal increase in RBCs?
hypoxia
what are B12 and folic acid essential for?
DNA synthesis
foods rich in folic acid
Folic acid found in leafy green vegetables, fruits, legumes, and beans
source of B12?
animal foods. or synthetic.
who is at risk for decreased RBC synthesis?
Kidney failure (erythropoietin), gastric resection (lack of intrinsic factor), alcoholics, vegans and vegetarians.
acg life span of RBC
120 days
how are RBCs removed from circulation?
Removed from circulation by reticuloendothelial cells in liver and spleen
Hgb is recycled; portion breaks down to bilirubin and is secreted in bile
Iron is recycled to form new Hgb
normal leukocyte count?
Leukocytes: 5,000 to 10,000/mm3 
what's the definition of neutropenia?
ANC < 2,000
definition of leukocytosis
ANC > 7,000
describe lifespan of platelets
Circulate for 10 days and removed by macrophages primarily in the spleen
Macrophages are monocytes (WBC) that have migrated into tissues and matured
normal platelet count
150,000 to 350,000 platelets/mm circulating blood 
what is hematocrit?
The hematocrit (Ht or HCT) or packed cell volume (PCV) or erythrocyte volume fraction (EVF) is the volume percentage (%) of red blood cells in blood. It is normally about 45% for men and 40% for women.[1]
purpose of bone marrow bx and aspiration?
Enables diagnosis by evaluating RBCs, WBCs, and platelets
Can stage cancers
Determine different causes of infection
Can monitor degree of immunosuppression and effectiveness of chemotherapy (treatments)