What are the medical uses of radioactive substances?

Answer 1

AnswerA few important uses of radio-isotopes (usually called radionuclides) are:

• Radio-isotopes are widely used in medicine, as tracers that show up on X-ray film, and sometimes to destroy cancerous growths.
• They are also used widely in industry. The radiation emitted by different radio-isotopes can be used for rapid, highly accurate measurement of material thickness, including the thickness of platings or coatings. The purity or composition of materials can be established by means of radio-isotopes. Radio-isotopes are used as gamma ray sources to irradiate and sterilize materials.
• In agriculture, radio-isotope tracers can be used to check for proper distribution of insecticides.
• Radio-isotopes are used to detect pipeline leaks, and to trace underground water.
• Naturally occurring radio-isotopes can be detected in forensic science, to assist in solving crimes.
• Naturally occurring radio-isotopes are also used by archaeologists and related specialists to help establish the authenticity and age of specimens.
• Naturally occurring radio-isotopes are often used by geologists to establish the ages of rocks.

A link is provided to the Wikipedia article on the uses of radionuclides.

Answer 2

Radioactive substances are frequently used as markers, which can help doctors trace the movement of some substance throughout the body. PET scans, for instance, make use of injected radioactive isotopes to monitor the movement of various substances throughout the brain. Proteins can be "labeled" with a radioactive tag, allowing physiologists to determine how dietary protein is used and oxidized under various levels of exercise intensity.

Additional answer: Radioactive isotopes are also used to sterilize medical equipment i.e. use of Gamma rays.

Answer 3

1.They have been used for teir chemical property radiation. Radionuclides of familiar elements like carbon can be used as the tracers.

2.In nuclear medicine they are used for diagonosis, treatement et cetra. In some forms of tomography like,single-photon emission tomography and positron emission tomogaphy.

3.Used in the treatement hemopoietic which forms tumor.

4.In Genetis and Biochemisty they are used to trace the chemicals like Amino Acid. and help in DNA replication

5.For the food preservation too.
radioactive isotopes can be used to

determine the ages of rocks and fossils

to treat cancer and kill bacteria that causes food to spoil

as "tracers" to follow the movements of substances within organisms

Answer 4

They can be used (by swallowing a safe radioactive substance) to show up the digestive track in a high definition, which is used in investigative gastroenterology. They can also be injected into the bloodstream and measured at hourly intervals (via a bloodtest) to see how long it takes the kidneys to filter out the substance. This is a test of kidney function.

Answer 5

there is a bunch of different uses including;

• Neulear Weapons
• Smoke Detecors
• Used for Cancer Therapy

The Exact use really depends on exactly what element you are talking about!

:) Hope that This is what you were looking for!

Answer 6

Radioactive substances are used in medical imaging techniques such as PET scans and certain types of cancer treatments like radiation therapy. They can help diagnose and treat diseases by targeting specific tissues and organs for imaging or treatment.

Answer 7

Some examples are deuterium and tritium which are radioactive isotopes of hydrogen.

Answer 8

in nuclear power stations, for the convenience of studying science,in medical field and in industries.