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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
Surgery: Susruta-Samhita, a.major treatise on surgery, was derived not only from exhaustive observation of symptoms of diseases and their possible treatments but also a fair
If the Quabbin Reservoir Watershed is 100 km2, the average precipitation in New England is 130 cm/year, and the volume of the reservoir is 1.5 x 1012 liters, what is the residence
Support groups are separate from clinical therapy groups. Why is it important for substance use disorders counselors to know what happens in non-clinical support groups? How could
Structure of Atoms Elements are pure substances. Elements are composed of a single kind of atom, as opposed to compounds which contain two or more kinds of atoms (see lesson 5).
is pencil translucent or opaque?
How Complement System Helps To Handle Microbial Invasion 1) Some components of a complement system coat microorganisms. These organisms with such a coat can be easily phagocyt
A simple balance Suspend a ruler by loops of cord a short distance above a table top, as shown in the diagram. When the ruler is in balance, place identical coins in dissimilar
Explain Brain or Detector - Mechanism of Colour Perception The fibre identification of colour takes place in the brain. If any of these four pre-requisites are not present, the
what is science
To show the differences in soil particles Secure some glass jars that hold about half Gallon or two litres of water. Place various handfuls of soil in a jar. Fill the jar with
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