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55 Cards in this Set
- Front
- Back
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What are the formed elements of blood? |
RBCs, WBCs & platelets |
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What picks up stain? |
DNA & proteins |
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How long do RBCs last on average? |
120 days |
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How are WBCs named? |
By how they pick up stain |
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How can WBCs move? |
Cytoplasmic streaming; Like amoeba |
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What is the rarest WBC? |
Basophil |
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What is an agglutinogen? |
Antigen |
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What is an agglutinin? |
Antibody |
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What is the cell in the center? |
Lymphocyte |
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What cell is this? |
Lymphocyte |
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What cell is this? |
Monocyte |
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What cell is this? |
Monocyte |
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What cell is this? |
Eosinophil |
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What cell is this? |
Eosinophil |
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What cell is this? |
Neutrophil |
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What cell is this? |
Neutrophil |
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What cell is this? |
Basophil |
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What cell is this? |
Basophil |
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What cell is this? |
RBC |
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What cell is this? |
RBC |
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What cells are those? |
Platelets |
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What is anemia? |
A reduction in normal concentration of RBCs which leads to a declined oxygen carrying capacity of blood |
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How does aplastic anemia occur & what does it result in? |
When bone marrow is destroyed due to toxins or poisons; decreased rate of erythropoiesis |
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How does nutritional anemia occur & what does it result in? |
When an individual has a poor diet, typically low in protein or not enough iron; decreased rate of erythropoiesis |
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How does hemolytic anemia occur? |
Erythrocytes spontaneously lyse (undergo premature hemolysis) |
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How does sickle cell anemia occur & what does it cause? |
Genetic disease resulting in formation of sickle-shaped erythrocytes; decreased concentration of normal erythrocytes in circulation |
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How does hemorrhagic anemia occur? |
When an individual loses too much blood (due to severe injury or surgery) |
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How does pernicious anemia occur & what does it cause? |
When an individual produces a lowered amount of intrinsic factor from lining of stomach resulting in inability to absorb vitamen B12 through lining of intestine; without vitamin B12, erythropoiesis cannot occur |
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What is a hematocrit (hct) test? |
Determines the percentage of erythrocytes within total blood volume |
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What is the hematocrit a direct test for? |
Anemia |
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How are erythrocytes always measured in a hematocrit? |
As a percentage |
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What are normal hematocrit values for men & women? |
Men: 47 plus or minus 7% Women: 42 plus or minus 5% |
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What method is used for a hemoglobin (Hb) test? |
Tallquist method |
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What does a hemoglobin test do? |
Determines the amount of hemoglobin in a blood sample |
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What is a hemoglobin test an indirect test for? |
Anemia |
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How is hemoglobin measured? |
In grams per deciliter (g/dL) or grams per 100 milliliters (g/100mL) |
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What are normal Hb values in men & women? |
Men: 13-18 g/dL Women: 12-16 g/dL |
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What are the average Hb levels in men & women? |
Men: 15.7 g/dL Women: 13.8 g/dL |
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What is the most numerous leukocyte? |
Neutrophil |
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What are the three granular leukocytes? |
Neutrophils, eosinophils & basophils |
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What is also called an erythrocyte? |
RBC |
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What are the two actively phagocytic leukocytes? |
Monocytes & Neutrophils |
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What are the two agranular leukocytes? |
Lymphocytes & monocytes |
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What fragment to form platelets? |
Megakaryocyte |
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What two leukocytes increase during allergy attacks? |
Eosinophils & basophils |
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What leukocyte releases histamine during inflammatory reactions? |
Basophil |
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What two leukocytes are formed in lymphoid tissue? |
Monocytes & Lymphocytes |
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What leukocyte increases in number during prolonged infections? |
Neutrophil |
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What is the least numerous leukocyte? |
Basophils |
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What does a neutrophil look like? |
-Fine pink/purple granules -Multi-lobed nucleus |
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What does an eosinophil look like? |
-large pink granules -bi-lobed nucleus |
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What does a basophil look like? |
-Large black/purple granules -Lobed nucleus |
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What are basophils important in? |
Allergic/inflammation response |
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What do lymphocytes look like? |
-Mostly spherical nucleus |
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What do monocytes look like? |
-Kidney shaped nucleus |
