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A tracer, whether radioactive, or chemical, or a dye, should not interfere with the normal functioning of the system being studied. And should be observable.
In studying the transport of CO2 in plants, we used to manufacture an isotope of carbon, 11C, which had a half life of about 20 minutes. (We had to be a bit nippy in its manufacture and use!) This then, as CO2, transported through the plant as if it were normal CO2, making sugars etc, and the clever guys followed its passage with appropriate radioactivity counters.
Another use concerns breathing, in which the subject breathes a slightly radioactive gas, and its passage is followed by a complex set of detectors. It is quite something to see, on a screen, your lungs breathing in and out, and to observe a blank portion of them that is not, for no gas is reaching this region! I trust you never have to experience this procedure.
[Another class of tracers is the radio opaque materials which are dense as seen by x-rays. These are often used to study the flow of blood through your body, to detect embolisms, and blockages in the veins etc.]
What else can I help you with?
Which substance is administered in preparation for a nuclear scan?
A radioactive tracer, such as technetium-99m, is typically administered in preparation for a nuclear scan. This tracer is designed to accumulate in specific tissues or organs of interest, allowing for detailed imaging and evaluation of their functioning.
What property of radioactive elements make them useful for determining absolute age?
The property of radioactive decay is what makes radioactive elements useful for determining absolute age. By measuring the amount of parent and daughter isotopes in a sample, scientists can calculate the age of the material based on the known half-life of the radioactive element.
An example of an Radioactive tracer?
One example of a radioactive tracer is technetium-99m, which is commonly used in medical imaging. It emits gamma radiation that can be detected by imaging equipment, allowing doctors to track its movement within the body to diagnose conditions such as heart disease or cancer.
Which technique is also known as scintigram?
A scintigram is a diagnostic imaging technique that uses radioactive tracer particles to produce images of organs and tissues in the body. It is also known as a nuclear medicine scan.
What is radioactive half-life used for?
Radioactive half-life is used to measure the rate at which a radioactive substance decays. It is important in determining the amount of time it takes for half of a radioactive substance to decay into a stable form. This information is useful in various fields such as medicine, environmental science, and geology for dating purposes and evaluating risks associated with radioactive materials.
How does radioactive tracer get into the body?
They dissolve it in a liquid and the patient drinks it
Radioactive tracers are useful in?
Radioactive tracers are useful in various fields such as medicine, industry, and environmental science. They help track the movement of substances in biological systems, monitor industrial processes, and study environmental pollution. By following the path of the tracer, researchers can gain valuable insights into different processes and make informed decisions.
How much radioactive tracer is injected into the vein for a typical bone scan?
About 1 Mg.
Radioactive isotopes that can be followed through a chemical reaction or a industrial process is?
tracer
Nuclear medicine uses these to image organs for diagnosis and treatment?
radioactive material called a tracer
Would a substance with a one second life be effective as a radioactive tracer?
the dog ate the bacon
What is a radioactive tracer and give an example of how one might be used?
A radioactive tracer is a radioactive atom inserted in a compound to see what happens to it in a reaction, usually in biotechnology. For example, to find out where carbon atoms go in photosynthesis, scientists can give the plants carbon dioxide with carbon-14 instead of carbon-12 and track the progress of the carbon-14.
Would a substance with a one-second half-life be effective as a radioactive tracer?
the dog ate the bacon
What is a radioactive tracer Give an example of how one might be used.?
A radioactive tracer is a radioactive atom inserted in a compound to see what happens to it in a reaction, usually in biotechnology. For example, to find out where carbon atoms go in photosynthesis, scientists can give the plants carbon dioxide with carbon-14 instead of carbon-12 and track the progress of the carbon-14.
What kind of tracer is used in a bone scan?
A radioactive tracer called technetium-99m is commonly used in bone scans. This tracer is injected into the bloodstream and accumulates in areas of the bones where there is increased activity, such as in cases of fractures, infections, or tumors.
A tracer is a radioactive element whose pathway through the steps of a chemical reaction can be followed?
Yes a tracer is a radioactive element whose pathway through the steps of a chemical reaction can be followed. It can be used to explore the mechanism of chemical reactions by tracing the path that the radioisotope follows from reactants to products.
What are some ways that technetium is used?
The isomer Tc-99m is largely used as tracer for radiodiagnostic.The isotope Tc-99 is used to make standardized beta emitter sources.Technetium has useful properties but it is difficult to be used in other fields of technology because is radioactive.
