Assessment and Posttest

Choose the one best answer

1. What is radon?
   1. Colorless, odorless gas imperceptible to the senses.
   2. Radiation emitted by smoke detectors.
   3. UV radiation from the sun during solar explosions.
   4. DThe product of decay from nuclear waste.
2. Which is/are the main source of human exposure to alpha radiation?
   1. UV rays from the sun.
   2. Radiation emitted by smoke detectors.
   3. Occupational exposures from working in a nuclear reactor.
   4. Radon progeny.
3. What is the main source of indoor radon gas?
   1. UV radiation from the sun.
   2. Radon gas infiltration from soil into buildings.
   3. Microwave ovens.
   4. Acid rain.
4. Which of the following is the best method of determining whether you are potentially exposed to increased environmental levels of radon in your home?
   1. If you have an earthy/moldy smell in your basement.
   2. Measuring radon gas levels.
   3. Asking neighbors if they have increased levels of radon in their homes.
   4. With a radon specific blood test.
5. The most important route of exposure to radon is
   1. Ingestion.
   2. Inhalation.
   3. Dermal contact.
   4. Endogenous sources.
6. What is the only established human health effect currently associated with exposure to increased levels of radon?
   1. Radiation burn syndrome (RBS).
   2. Gastric ulcers.
   3. Lung cancer.
   4. Leukemia in children.
7. Which of the following best identifies populations having the highest risk of exposure to increased radon levels?
   1. Women and children living at high altitude.
   2. Pregnant women and their fetuses.
   3. Elderly people living in Florida.
   4. People living in homes so tightly sealed for energy efficiency that the homes do not breathe and expel contaminants.
8. In 2007, exposure to radon was considered
   1. One of the most important causes of blood dyscrasias.
   2. The most important cause of radiation burns.
   3. The second environmental cause of lung cancer deaths.
   4. An important disruptor of prostaglandins.
9. What is the relative risk of lung cancer mortality from radon exposure for persons who smoke cigarettes as compared with those who have never smoked?
   1. 0.8-1.4 times greater.
   2. 2-4 times greater.
   3. 5 times greater.
   4. 10-20 times greater.
10. At which of the following levels would EPA recommend indoor radon remediation?
    1. 0.4 pCi/L.
    2. 1.3 pCi/L.
    3. 2 pCi/L.
    4. =>4 pCi/L.
11. How should adults and children potentially exposed to increased radon levels be clinically assessed?
    1. Blood testing.
    2. Ultrasound.
    3. Long bone x-rays.
    4. History and physical exam focused on lung function.
12. Which of the following is clinically indicated in the treatment of radon toxicity?
    1. Chelation.
    2. Immunotherapy.
    3. Iron therapy.
    4. None of the above.
13. Which of the following is a way to assess potential increased exposure to radon gas?
    1. Whole blood radon
    2. Antigen specific test
    3. Testing the home for radon gas
    4. Urine phenol
14. What should a patient do if home radon levels exceed the recommended EPA maximum?
    1. Make sure all paint is in good condition and wet-clean regularly.
    2. Remove microwave ovens from home.
    3. Cover bare soil in the yard.
    4. Home remediation.
15. Which of the following should be considered in the management of a patient with positive pulmonary findings from the initial clinical assessment when exposure to increased levels of radon are suspected or known?
    1. Radon decontamination.
    2. Cathartics.
    3. Referral to a specialist with expertise and experience treating lung disease.
    4. None of the above.

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