2nd part of chapter 18 on Hematology 1 DelTech Owens
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| RBCs are normally about __ um in size. | 7
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| If RBCs are less than 6um, they are __. | microcytic
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| If RBCs are more than 9um, they are __. | macrocytic
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| Normally, __ percent of RBCs are lost per day. | 1
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| What 3 things is RBC production dependent upon? | Iron, B12, Folic Acid
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| If erythropoiesis is effective, __ percent of progenitor cells will become RBCs. | 90
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| If erythropoiesis is ineffective, __ percent of progenitor cells will be destroyed in the bone marrow or immediately after release. | 10
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| Decreased total and effective erythropoiesis is called __ __. | aplastic anemia
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| Iron is store for __ months in the body. | 6
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| In microcytic, hypochromic anemia, the MCV is less than __ and MCHC is less than __. | MCV <80 and MCHC is <32
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| In macrocytic, normochromic anemia, MCV is more than __ and MCHC is more than __. | MCV >100 and MCHC is >32
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| Microcytic, hypochromic anemia can be caused by these 6 things: | 1) abnormality of HGB synthesis
2) Iron deficiency (in 90% cases)
3) Deficiency of heme synthesis (sideroblastic anemia)
4) Chronic disease
5) Deficiency of globin synthesis (thalassemias)
6) Iron level insufficient
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| Macrocytic, normochromic anemias are caused by these 6 things: | 1) B12 or folate def
2) alcoholism
3) ovalocytes or tear drop cells
4) megaloblasts or NRBCs
5) Def. in DNA production (all cells affected)
6) Liver disease (symptoms include chronic hemolytic anemia, high retic count)
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