Match the radioactive isotope with its proper use: (a)...

Match the radioactive isotope with its proper use:
(a) Cobalt- 60
(b) Thallium-201
(c) Tritium
(d) Mercury-197
1. Heart scan during exercise
2. Measure water content of body
3. Kidney scan
4. Cancer therapy

Key Concepts

Diagnostic Nuclear Medicine

Diagnostic nuclear medicine uses radiotracers to visualize and study the function of organs and tissues. By tracking the distribution and concentration of these isotopes within the body, physicians can obtain real-time insights into organ performance, blood flow, and metabolic activity, which are critical in performing scans such as those of the heart or kidneys.

Radioactive Isotopes

Radioactive isotopes, or radioisotopes, are elements with unstable nuclei that decay by emitting radiation. Their unique decay properties—such as half-life, type of radiation emitted, and energy—make them valuable in various medical applications, including both diagnostic imaging and therapeutic treatments.

Radiotracers

Radiotracers are specialized radioactive isotopes attached to molecules that target specific physiological processes or tissues. Their ability to emit detectable radiation allows for the non-invasive mapping and quantification of biological functions, which is fundamental in diagnostic procedures like myocardial perfusion imaging or in assessing water content in the body.

Radiotherapy

Radiotherapy involves the use of high-energy radiation from appropriate radioactive isotopes to treat diseases such as cancer. By directing these emissions precisely at tumor cells, radiotherapy damages the DNA of cancerous cells, inhibiting their ability to proliferate while striving to minimize exposure to surrounding healthy tissues.

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