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NU201 - CH13 (Oxy Trans)

Terms in this set (22)

Anemias are described by the size of the erythrocytes and the amount of hemoglobin that they contain

Normocytic: normal size

Macrocytic: abnormally large size

Microcytic: abnormally small size

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Normochromic: normal amount of hemoglobin in erythrocytes

Hyperchromic: abnormally large amount of hemoglobin in erythrocytes

Hypochromic: abnormally small amount of hemoglobin in erythrocytes

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Hematocrit
Percentage of the blood volume composed of red blood cells
Decreased in all anemias

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Hemoglobin
Concentration of hemoglobin in the blood
Decreased in all anemias

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Reticulocyte Count
Number of immature red blood cells in the blood
Decreased in disorders that decrease erythropoiesis
Increased in hemorrhage and hemolytic anemias

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Mean Corpuscular Volume (MCV)
Indicates the average size of red blood cells
Used to differentiate macrocytic (increased MCV), microcytic (decreased MCV), and normocytic (normal MCV) anemias

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Mean Corpuscular Hemoglobin (MCH) and Hemoglobin Concentration (MCHC)
Indicates the average amount of hemoglobin in red blood cells
Used to differentiate hypochromic (decreased MCH and MCHC) from normochromic (normal MCH and MCHC) anemias

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Blood Smear
Provides actual visualization of red blood cell morphology
Used to visualize specific morphologies such as sickle cells or spherocytes

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Red Blood Cell Size Distribution Width (RDW)
Indicates the size variation of red blood cells
Used for differential diagnosis of macrocytic and microcytic anemias