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Explain the Radioactive Red Blood Cells
In order to make red blood cells radioactive, tagging of red blood cells with radioactive chromium (51cr) is done. A small quantity of 51cr is mixed with a few milliliters of blood removed from the person and this is incubated at 36°C for half an hour or more. After this time, most of the 51cr will have entered the red blood cells, but to remove the extra chromium from the mixture, the red blood cells are washed with saline. The total content of 51cr is then determined with a Geiger or scintillation counter (apparatus for measuring the total number of radioactive disintegrations occurring in the sample per minute). Then the radioactive cells are re-injected in the person. After mixing in the circulatory system for approximately 10 minutes, blood sample is taken from the circulatory system, and the radioactivity in this blood is determined, using dilution formula given above in dilution principle. Then actual volume is calculated i.e.
Actual blood volume = 1.1 x Measured blood volume
Check-in Sequences At the time of opening the lab, the following need to be kept in mind: 1. Ensure that the door locks have not been tampered. If any tampering is detected
What is the earth made of? The overall composition of the Earth, in terms of elemental composition is as follows: Iron 34.6% Oxygen 29.5% Magnesium 12.7% Silic
The physical property used in mineral identification for the way a minerals surface reflects light is known as luster
How do you explain the fact that clay soils which commonly have higher pore space than sandy soils are often more poorly aerated than sandy soils. Clay soils have higher pore s
mode of feeding f a lion
Diagrammatically explain about the complementary nature of atomic absorption spectrophotometer and atomic emission spectrometry.n..
stick pictures of carbohydrates,fates,proteins,minerals&different types of vitamin containing foods
what is meant by this topic?
Age Related Differences in Erythropoiesis 1. During intrauterine life, in the early embryo, erythropoiesis occurs in the mesoderm (the middle of the three germ layers of an emb
Explain the Passive Factors or Passive Soil Formers Passive factors are by and large slow acting factors and include parent material, topography and time.
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