Anemia facts Flashcards
hypo chromic anemia
small RBC with low hemoglobin from chronic blood loss
mageloblastic anemia
large RBC from B12 or folic acid deficiency
pernicious anemia
fewer RBC from low intrinsic factor causing low b12
haemolytic anemia
excessive destruction of RBCs
iron doses
5mg for men
15mg for children or women
2-10times for pregnancy
Iron kinetics
Ferrous iron Fe2+
by ferric reductase is absorbable by the duodenum, jejunum and upper ileum
Senescent RBC
old RBC taken up by reticular system (macrophages and spleen)
EPO action
Binds to intracellular receptors acting via tyrosine kisses to
-inhibit apoptosis
-proliferation via JAK2
Colony stimulating factors MOA
Bind to myeloid progenitor cells which activate janus protein kinase and signal transducers and activators of transcription
G-CSF side effects
-bone loss from increased osteoclasts
-joint pain from increased cytokines
-renal dysfunction from leukostasis plugging the kidneys
-respiratory distress from neutrophils activating in lungs
-splenic rupture
-sickle cell crises, compounds effect
oprelvekin IL-11
megakaryocytic growth factor
-increases platelets
——
-dizziness
-headache
-fatigue
Thrombopoietin
megakaryocytic growth factor
-increases platelets