Ch. 12 Cancer Epidemiology Flashcards
A person has smoked one pack of cigarettes a day for 30 years. Which of the following is TRUE regarding smoking?
Tobacco smoking is responsible for 10% of all cancer deaths.
Tobacco use is associated with small cell and squamous cell carcinoma.
Tobacco smoking is dangerous only to lung tissue.
Tobacco use accounts for 4000 to 5000 deaths a year worldwide.
Tobacco use is associated with small cell and squamous cell carcinoma
Which is a TRUE statement concerning the association of adiposity with cancer?
Adiposity-induced alterations in blood levels of sex steroids has not been linked to breast and endometrium cancer.
Hyperinsulinemia can be protective for breast cancer.
Obesity is always a causal factor of cancer mortality.
There is an association between body mass index and breast cancer.
There is an association between body mass index and breast cancer
A person drinks alcohol in excessive quantities. Which of the following areas is least likely to develop cancer related to alcohol consumption? Oral cavity Larynx Spleen Liver
spleen
.ID: 37610366 A man has been around asbestos in his career for more than 40 years. Which of the following cancers is he most likely to develop? Bladder Leukemia Stomach Lung
Lung
Which of the following is NOT true regarding the body’s defense mechanisms against cell damage?
The phase I activation enzyme is represented by cytochrome P-450.
The enzymes that protect against damage are found predominantly in the liver.
The two systems are xenobiotic and antioxidant.
Most xenobiotics are transported in the blood by lipoproteins.
The two systems are xenobiotic and antioxidant
Which of the following is a TRUE statement regarding environmental risk factors and the development of cancer?
Human papillomavirus can cause liver cancer.
Hepatitis C is linked to breast cancer.
Physical activity reduces the risk of breast and colon cancer.
Chronic alcoholism is linked to lung cancer.
Physical activity reduces the risk of breast and colon cancer
Which of the following cancers is NOT linked to obesity and a higher risk of death? Esophageal Stomach Colorectal Brain
Brain
Which of the following does NOT affect radiation-induced damage? Weight Dose response Repair mechanisms Antioxidants
Weight
Which of the following is a TRUE statement regarding ultraviolet (UV) light?
It produces reactive oxygen species (ROS).
The degree of damage is not affected by wavelength.
It can cause the formation of sarcomas.
Ozone depletion has no effect on intensity of exposure
It produces reactive oxygen species (ROS)
A man has been diagnosed with a skin cancer. He is diagnosed with basal cell carcinoma. Which of the following is a TRUE statement regarding basal cell carcinoma?
It is most commonly found on the trunk.
It is found on persons with a dark complexion.
Persons usually develop a tan, not a burn.
It is most commonly found on sun-exposed areas.
It is most commonly found on sun-exposed areas
A person is diagnosed with melanoma. Which of the following is most likely accurate regarding this person?
The melanoma is found on the back of the legs.
The person is most likely of Asian descent.
The person is able to tan well.
Mortality from melanoma is 10%.
The melanoma is found on the back of the legs
Air pollution is associated with cancer. Which of the following statements pertaining to this association is NOT true?
Even modest contamination of the atmosphere can result in inhalation of appreciable doses of pollutants.
Radon exposure can occur in underground mines and in homes.
There is good evidence that air pollution is associated with cancers other than lung and childhood cancers.
Indoor air pollution is considered worse than outdoor air pollution.
There is good evidence that air pollution is associated with cancers other than lung and childhood cancers.
