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1. Erythrocytes (RBCs) 2. Leukocytes (WBCs) 3. Thrombocytes (platelets) |
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Definition
| 3 classes of cells/formed elements in blood |
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| Combat infections and invading organisms |
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Range: 150,000-400,000 per mm3 300,000 per mm3 |
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Normal platelet range: Average: |
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Males: 7-9000 per mm3 Females: 5-7000 mm3 |
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Definition
WBC range for males for females |
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Males: 5.4 +/- 0.8 million per mm3 Females: 4.8 +/- 0.6 per mm3 |
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RBC range for males: females: |
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Erythrocytes and thrombocytes. Both lack nuclei and cannot undergo mitosis to form daughter cells. |
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Definition
What formed elements of blood are not "true cells"? Why? |
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RBC: hemoglobin platelet: platelet factor 3 |
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Definition
| RBCs and platelets carry what chemicals? |
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Each g of hemoglobin can carry ____ ml of O2. There is about ___ g of Hb/100 ml of blood. |
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1. Decrease in # of erythrocytes 2. Decreased Hb in each cell 3. Decreased size in each cell 4. Hemmorhaging 5. Aplastic bone marrow 6. Erythrocyte fragility 7. Maturation fragility |
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Definition
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Definition
| An automatic counter of blood cells |
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| hemocytometer counting chamber |
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Definition
| The standard method of counting blood uses the |
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| 1 mm2 to 1/25 mm3 to 1/16 of 1/25 |
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| Size of the counting area |
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| Thoma blood dilution pipettes |
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Definition
| Name of dilution pipettes used to make blood dilutions |
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| Solutions for RBC preservation (also prevents coagulation) |
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| Solutions for WBC preservation that lyses RBCs and converts Hb to hematin |
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Dilution (x200) Depth of chamber (.1 mm=x10) Area of square counted (1/25 = x25) |
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Definition
| The 3 multiplication factors for counting RBC/mm3 |
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Dilution (x20) Counting chamber depth (.1mm = x10) Area counted (1mm2= x1) |
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| The 3 multiplication factors for counting WBC/mm3 |
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(Hemtocrit (% red cells) x 10/ BC count (millions/mm3) Range: 87+/- 2 cubic microns |
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Definition
Mean Corpuscular Volume (MCV) formula: Normal range of MCV |
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(Hemoglobin (g/100ml blood)x 100)/ Hematocrit (%) Range: 34 +/- 2% of the RBC is hemoglobin |
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Mean corpuscular hemoglobin concentration (MCHC) formula: Normal range: |
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