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Medical Applications for Radiation

Radiation is used in a wide range of meical applications. They range from diagnosis of disease, therapy and research. Although radiation is dangerous when exposed to it improperly, it is an extremely effective treatment of cancers.

Radiation therapy works by damaging the DNA of cancerous cells. This DNA damage is caused by one of two types of energy, photon or charged particle. The damage caused is either direct or indirect ionization of atoms which make up the DNA chain. The indirect ionization happens as a result of the ionization of water, which forms free radicals, which then damage the DNA.

In photon therapy, the radiation effect is through free radicals. Due to the cells ability to repair single-strand DNA damage, double stranded DNA breaks. This proves to be the most significant technique to cause cell death.

Doses and delivery of photon radiation therapy is measured in gray (Gy) and varies depending on the type and stage of cancer being treated. A typical does for a solid epithelial tumor will range from 60 to 80 Gy where lymphomas are treated with 20 to 40 Gy.

There are three main divisions of radiation therapy, external beam radiation therapy or teletherapy, brachytherapy or sealed source radiation therapy, and systemic radioisotope therapy or unsealed source radiotherapy. The techniques differ in the position of the radiation source. The radiation can either be outside of the body, sealed radioactive sources placed in areas under treatment or systemic radioisotopes given by infusion or oral ingested.

Stochastic versus Deterministic Effects

Describe in your own words the following terms and give at least two examples for each: a) radiation, b) radioactive, c) ionizing radiation. Compare and contrast deterministic and stochastic effects of ionizing radiation. What is the role of how the radiation dose is delivered in time impact these effects?

X-Ray Tubes for Science and Medicine

This solution describes the basics of an x-ray tube for medical and basic-science applications. Through multiple choice questions, the principle of the acceleration of electrons onto a high-Z target for x-ray production is discussed. Some details about the underlying physics for generating Bremstrahlung and line-emission x-rays

Disaster Relief Strategies

Disaster Management Take a moment to explore the major calamities that have affected individuals worldwide within the last 5 years (Hurricane Katrina, Hurricane Irene, the Japan earthquake/tsunami, the BP oil spill in the Gulf of Mexico). Select two contemporary natural disasters that have occurred within the last 5 years, an

Bruce W. Carter Department of Veterans Affairs Medical Center

I have attempted to research the VA Hospital in Miami, Florida, Bruce W. Carter Department of Veterans Affairs Medical Center. I need to include the size, structure, level of care, variety of services offered, as well as the type of ED available. I also need to comment on operational problems in contrast to the organization's mi

Case Study: CQI and Public Health Organizations

Rex Health Care and Service Line Teams Case Study Rex Health Care has a good reputation and has long been working up to the present situation in which it has made major investments and a number of strategic adjustments. It has evolved a complex organizational structure for dealing with performance enhancement. This structure

Technology and delivery of health care

How has technology affected the delivery of health care in radiologic and imaging sciences? How has fusion technology influenced patient care and diagnosis and how has this development impacted the growth of professionals within allied health?

Reed-Sternberg Cell Case Study

A 35-year-old man has a small lump in his left cervical area. He did not consult a doctor. After several weeks, he felt several more lumps in the same area. At the same time, he has experienced weight loss, fatigue, and low-grade night fever. His doctor immediately took a biopsy of the lump and found a giant Reed-Sternberg cell.

Mark Erikson's views

Mark Erickson states in Science, Culture, & Society that "While it is important to understand the social aspects of science, the reverse may be even more important: that to understand society and culture, we need to understand science." What does the author mean by this and what are some examples?

Nitric Oxide in Medicine

Please help with the following problem. Over two decades ago, nitric oxide (NO) assumed an importatant role in biochemistry and pharmacology. What is its role in modern medicine? I have attached a journal article that I would basically like translated into laymans terms. This article is what I am using to base my answer off

Microeconomic concepts

Need help on how to explain. "Government involvement in general scientific research has been justified on the grounds that advances in knowledge are public goods - once produced, information can be shared at virtually no cost. A new production technology in an industry could be making available to all firms, reducing costs of

Management of health services organization: Corporate Compliance

Choose one of the pieces of compliance legislation: Stark 2 Laws, HIPAA, False Claims Act, and write a response that addresses the following: A brief summary of the legislation A list of actionable items that health care administrators should engage in to address the legislation and protect their organizations against non-co

Advantages of Fusion Reactors

Why are scientists spending a great deal of effort to build a fusion reactor even though it would operate at a very high temperature that could be difficult to reach and maintain? Radioisotopes in nuclear medicine are desirable to have shorter half-lives. Why?

Discuss: Human Resource Information System

Can you help me to identify and research two to three companies that have dealt with issues similar to Human Resource Information Systems. For each company I would need to discuss the following in a one-page synopsis: (1) situation facing the company (including the key issues that emerged) (2) how the company responded to the

Conduct research on future healthcare trends, technologies, and innovations.

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Public, For-Profit, and Private Non-Profit Health Care Organizations (HCOs)

During the first pilot test of your first training session, a new worker asks you to: *Explain the difference between public, for-profit, and private non-profit health care organizations. *Discuss the major differences among these three legal structures, as well as the benefits and drawbacks from a legal and regulatory pe

Leadership Research Worksheet

Assignment: Identify and research two companies that have faced specific issues related to those you identified in the Gene One Scenario and connected with the course concepts. For each company selected, discuss the following in a 350-word synopsis: (A) issue identified in the scenario that is also facing the company, (B) how t