Blood And Immun Flashcards
What does a myelin last turn into?
Progranulocyte. (Basophils neutrophils and eosinophils)
What become progenitor cells?
Pluripotent hematopoietic stem cells
How much hemoglobin does a reticulocyte contain?
80% mature RBC
Requirements for RBC production
EPO, thyroid, bone marrow, b12 b6 protein copper and folate
Reticulocyte a
Enter through sinusoids and have nuclei
Macrocytic anemia
B12 and Folic Acid deficiency (DNA)
Megaloblastic anemiA
Low hb/hct
Hematocrit HCT
40-48% males 35-44% females
Hemoglobin hb
1/3 hematocrit value
Epo is regulated by
Tissue oxygenation
How long for epo to increase rate of RBC production?
2-3 days
Factors that increase RBC synthesis
Anemia High altitudes Impaired cardiac Impaired pulmonary Pregnancy
Iron stores in body
2/3 hemoglobin 1/3 in ferritin (marrow, spleen, liver, muscle)
Sickle cell
Hemoglobin s (abnormal b chains) crystallize in low O2. Suckling occurs
Decreased RBC synthesis
Iron deficiency
B12 deficiency
Folic Acid def
High rate of RBC destruction
Hemolytic anemia
Granulocytea
Neutrophils 50-70% WBC, eosinophils 1-4%, basophils .4%