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Describe the relationship between blood cells and hematocrit and blood viscosity?
Blood cells are erythrocyte, leukocyte and platelets but the hematocrit is the percentage of the erythrocytes out of the total blood volume.Blood viscosity is a measure of the resistance of blood to flow, which is being deformed by either shear stress or extensional stress.So the relation of between them is they will all talk about blood flow and number of cells of the blood in a range of blood volume.**The relationship is that when red blood cells increases, hematocrit increases, and blood viscosity also increases because too much red blood cells (erythrocytes) in the blood makes the blood more dense/thicker, and therefore slows down the flow of the blood. In short, blood cells, hematocrit, and blood viscosity are all directly proportional with each other.
What causes viscosity to increases and decrease?
Blood carries white blood cells, red blood cells, hormones and other substances. Internal friction within in the blood (viscosity) is caused by the percentage of these cells in the blood. A higher percentage of cells in the blood means the viscosity is higher. Red blood cells are the hematocrit. When the hematocrit is decreased such as occurs with anemia, the viscosity of the blood is decreased.
What condition can result in an increased hematocrit?
Dehydration can lead to an increased hematocrit because there is a decrease in plasma volume while the amount of red blood cells remains the same, causing the overall concentration of red blood cells in the blood to increase.
What is the effect of a bacterial infection on the hematocrit?
Its really simple if you think about it. if you have a bacterial infection your white blood cell count would increase because as the wbc's are fighting off the infection they die off releasing a chemical into the blood stream that tells your body to increase production of white blood cells. so the hematocrit would have a thicker buffer layer. the buffer layer being the white blood cells. With a higher production of white blood cells the rbc production would very slightly decrease which would decrease the ratio of rbc to whole blood volume.
If you have a high hemocrit would your hemoglobin be high or low?
If you have a high hematocrit, your hemoglobin levels would likely be high as well. Hematocrit measures the volume of red blood cells in blood, while hemoglobin is the protein that carries oxygen in red blood cells. An increase in hematocrit often corresponds with an increase in hemoglobin levels.
Which events will tend to cause a decrease in blood viscosity?
Anemia can lead to decrease blood viscosity, which may lead to heart failure. Other factors influencing blood viscosity include temperature, where an increase in temperature results in a decrease in viscosity. This is particularly important in hypothermia, where an increase in blood viscosity will cause problems with blood circulation.
Factor due to which Viscosity of blood increase?
Viscosity of blood increases due to factors such as dehydration, high hematocrit levels (increased red blood cell concentration), and certain medical conditions like diabetes and sickle cell anemia. Additionally, high cholesterol levels can contribute to increased blood viscosity.
Describe the relationship between blood cells and hematocrit and blood viscosity?
Blood cells are erythrocyte, leukocyte and platelets but the hematocrit is the percentage of the erythrocytes out of the total blood volume.Blood viscosity is a measure of the resistance of blood to flow, which is being deformed by either shear stress or extensional stress.So the relation of between them is they will all talk about blood flow and number of cells of the blood in a range of blood volume.**The relationship is that when red blood cells increases, hematocrit increases, and blood viscosity also increases because too much red blood cells (erythrocytes) in the blood makes the blood more dense/thicker, and therefore slows down the flow of the blood. In short, blood cells, hematocrit, and blood viscosity are all directly proportional with each other.
How will blood peripheral resistance change as a result of increased hematocrit?
An increased hematocrit indicates a higher ratio of RBC's in the blood. Any increase in cellular elements, whether WBC's, RBC's or platelets, will act to essentially mechanically "thicken" the blood viscosity, sort of like using a heavier grade oil in your car. Increased blood viscosity will increase peripheral resistance, as it becomes harder for the heart to circulate the thicker blood, especially in the capillaries.
If your bone marrow is producing an elevated number of red blood cells what happens to your hematocrit?
The percentage goes up. (Hematocrit is the percentage of red blood cells in a sample of whole blood, so if an elevated number of red blood cells is produced by your bone marrow, your hematocrit level should rise).
What two factors determine blood viscosity?
Blood viscosity is determined by hematocrit (the percentage of red blood cells in the blood) and plasma proteins (such as albumin and fibrinogen), which contribute to the thickness and stickiness of the blood. High hematocrit levels or increased plasma proteins can lead to increased blood viscosity, which can impact blood flow and circulation.
What causes viscosity to increases and decrease?
Blood carries white blood cells, red blood cells, hormones and other substances. Internal friction within in the blood (viscosity) is caused by the percentage of these cells in the blood. A higher percentage of cells in the blood means the viscosity is higher. Red blood cells are the hematocrit. When the hematocrit is decreased such as occurs with anemia, the viscosity of the blood is decreased.
What condition can result in an increased hematocrit?
Dehydration can lead to an increased hematocrit because there is a decrease in plasma volume while the amount of red blood cells remains the same, causing the overall concentration of red blood cells in the blood to increase.
How are the plasma volume and hematocrit related?
Plasma volume and hematocrit are inversely related; as plasma volume increases, hematocrit tends to decrease, and vice versa. Hematocrit is the proportion of blood volume that is occupied by red blood cells, so if the plasma volume rises due to factors like fluid retention, the concentration of red blood cells decreases, lowering hematocrit. Conversely, if plasma volume decreases (e.g., due to dehydration), hematocrit increases as red blood cells become more concentrated. This relationship is important for maintaining proper blood viscosity and oxygen transport.
How is blood viscosity measured and what factors can affect it?
Blood viscosity is measured by a test called a viscometer, which determines how easily blood flows. Factors that can affect blood viscosity include temperature, hematocrit levels, and the presence of certain proteins or diseases.
What change would you expect to happen in the hematocrit of a person who is dehydrated?
Hematocrit is a measure of the % of blood occupied by the Red Blood Cells (RBC) which carry oxygen. In the short term the hematocrit is affected by the % of water in the body, so if the person becomes dehydrated there is relatively less water than cells, so the haematocrit goes up.
What are the factors affecting peripheral resistance which influence BP?
There are three factors that increase peripheral resistance. These factors include autonomic activity, pharmacologic agents, and blood viscosity. Each factor increases the constriction of arteries, which in turn causes peripheral resistance.
