One assumption used in a cancer risk assessment dose-response evaluation that is not used in non-cancer risk assessment is:
Select one:
a. a threshold for the response exists (some dose is considered safe)
b. uncertainty factors can adjust for differences in human sensitivity
c. no threshold exists for the response (any dose causes a response)
c. no threshold exists for the response (any dose causes a response)
Carcinogenic effects are not considered to have a threshold and mathematical models help to determine the risk of carcinogenesis and very low level of dosage.
One assumption used in a cancer risk assessment dose-response evaluation that is not used in non-cancer...
Describe the difference between threshold and non-threshold dose response curves. Give one example of a disease or condition that fall into each category. (2 points) How can you manipulate your technical factors to reduce patient dose? (1 point)
1. What are risk and risk assessment? 2. What are the four steps of risk assessment? 3. What is the difference between toxicology and epidemiology? 4. Why is the fecal coliform test performed on public drinking water supplies? 5. How is the incidence of swine flu related to human activities that alter the environment? 6. What is a dose-response curve? 7. What is one way that scientists determine whether a chemical causes cancer? What are the two problems with this...
Assessing dose-response relationships. the major concern of community members about the gasoline tank leak is to increase in long term cancer risk due to one compound present in the well water that has been linked to blood and lung cancers. this compound is thought to lead to respiratory effects as well . What would likely be the differences in your approach to dose- response assessment for the carcinogenic effect of this command on the one hand and its non carcinogenic...
A subjective risk assessment using the method described in ISO31000 was conducted where experts storage site. Experts were consequences and expressed high agreement about relevant causal mechanisms. For one hazard, two assessors gave likelihood and consequence scores and calculated risk scores, summarised below. One expert is an industry-employed scientist and the other is a scientist employed by an environmental non-governmental organisation (NGO) were asked to assess hazards associated with a proposed high-level radioactive waste provided detailed background evidence describing hazard...
Will rate!!
People who eat lots of fruits and vegetables have lower rates of colon cancer than those who eat little of these foods. Fruits and vegetables are rich in "antioxidants" such as vitamins A, C, and E. will taking antioxidants help prevent colon cancer? A medical experiment studied this question with 864 people who were at risk of colon cancer. The subjects were divided into four groups: daily beta-carotene, daily vitamins C and E, all three vitamins every day,...
5-7
sentences initial thoughts
Selecting appropriate assessment techniques l: high quality assessments For an assessment to be high quality it needs to have good validity and reliability as well as absence from bias. Validity Validity is the evaluation of the “adequacy and appropriateness of the interpretations and uses of assessment results for a given group of individuals (Linn & Miller, 2005, p.68). For example is it appropriate to conclude that the results of a mathematics test on fractions given to...
1 What is an imprinted gene? Select one: a. A gene that is found on a Barr body b. A gene that is silenced upon inheritance from a designated parent c. A gene that is inherited from only one parent d. A gene that is encoded on only one of the two copies of a chromosome Question 2 Which of the following is NOT a typical characteristic of cancer? Select one: a. Malignant cancers are typically not able to metastasize...
Criteria for Wireless, All-in-One Printers The Rogue River Auto Store is a new and used car dealership that also sells parts and service. The company wants to replace eight older model printers with new models located in various departments in the dealership. The staff at Rogue prints large volumes of predominately black-and-white documents. They would like printers with multifunction (all-in-one) capabilities, such as scanning, printing, faxing, and copying. The management at Rogue would also like to be able to connect...
1.After reading the assigned article, what is the title of the
article and when was it written?
2. Who is the author(s) of the article and what gives them the
credibility, if any, to write the article?
3. In 2-3 sentences, what is the article trying to convey to
the general public?
4. Can you rely on the information obtained in this article?
Why or why not-give 2 reasons?
Study finds cancer link for muscle-building supplements April 13, 2015 A...
Clinical trials are usually conducted in phases that build on one another. Each phase is designed to answer certain questions. Knowing the phase of the clinical trial is important because it can give you some idea about how much is known about the treatment being studied. There are pros and cons to taking part in each phase of a clinical trial. Phase I clinical trials: Is the treatment safe? Phase I studies of a new drug are usually the first...