hematology blood composition and WBC
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| what are the components of the cellular portion of the blood? | Erythrocyte 5 million leukocytes 5000 from both sites 140,000 to 400,000 in each cubic
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| what are the components of the fluid portion of the blood? | Water 91.5%
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| how would blood settle in an anticoagulated tube from top to bottom? | plasma, buffy coat, erythrocytes
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| what is the difference between serum and plasma? | Serum is plasma with fibrinogen and clotting factors removed
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| what anti-coagulant is in a lavender to? And what is it used for? | EDTA, heem studies
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| what anti-coagulant is in a gold tube and what is it primarily used for? | None, yields serum, chemistry
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| what anti-coagulant is in a blue top to and what is it primarily used for? | Sodium citrate, PT, PTT coagulation studies
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| what two samples are unacceptable for hematology study? | hemolyzed and clotted
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| what is leukocytosis? | WBC count above normal
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| what causes leukocytosis? | bone marrow stimulated by bacteria or foreign particles example pollen, moldor acute bacterial infections such as pneumonia appendicitis
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| what is leukopenia? | WBC count below normal
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| what causes leukopenia? | Viral infections, influenza certain chemicals
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| what are the normal values for an adult WBC? | 4000 to 11000 WPC per millimeter cubed
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| what is an example of a critical WBC count value? | Less than 2000 or more than 50,000
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| how is the operation of automated cell counters classified? | Moderately complex by CLIA
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| what tests make upa complete routine CBC? | red blood cell count; WBC; hemoglobin; hematocrit; differential WBC count; estimation of platelet number; red cell indices
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| explain red blood cell count | number of red blood cells
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| explain white blood cell count | number of white blood cells
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| explain hemoglobin | the protein inside the RBC that carries oxygen
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| explain hematocrit | percent packed red cell volume
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| explain differentialWBC count | % of each type of WBC
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| explain estimation of platelet number | platelets observed for approximate number and any abnormalities
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| explain red cell indices | info to determine RBC disorders
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