Lab interpretation Flashcards
Blood is ___% body weight
6-8
Blood is __% plasma and __% formed elements
55
45
Women have __ L of blood and men have __ L
4.5-5.5
5-6
Plasma is __% water and __% proteins
92
7
Reticulocyte
Before erythrocyte, has a nucleus and when it loses it it becomes erythrocyte
RBC production is stimulated by..
Erythropoietin
Increased RBCs
Polycythemia
Decreased RBCs
Anemia
Life cycle of RBCs
120 days, 0.8% replaced daily
85% of RBCs are recycled by…
Macrophages
90% of iron is..
Recycled
15% of RBCs are list through..
Hemolysis
Decreased numbers of RBCs
Blood loss RBC destruction Decreased production (lack of needed elements, myelosuppression)
Hemoglobin is composed of
Heme (pigment), contains iron
Globin: protein
Hemoglobin determines..
Cell size and color
Hemoconcentration
If a person is dehydrated, it will look like they have more hemoglobin
Hematocrit
Measurement (%) space occupied by RBCs in plasma
Normal hematocrit values for men and women
Men 40-54%
Women 37-47%
Hematocrit is about ___ hemoglobin
3x
Reticulocyte count is only meaningful
In relation to total # or RBCs
Increased relic count
Over production of RBCs
Hemolysis
Blood loss
Decreased retic count
Deficiency of BM production
Iron deficiency
Anemua
Infection
RBC indices
MCV, MCH, MCHC
MCH
Mean corpuscular Hgb