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Uranium Toxicity
Assessment and Posttest Instructions

Course: WB 1524
CE Original Date: May 6, 2009
CE Renewal Date: May 6, 2012
CE Expiration Date: May 6, 2014
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Introduction

ATSDR seeks feedback on this course so we can assess its usefulness and effectiveness. We ask you to complete the assessment questionnaire online for this purpose.

In addition, if you complete the Assessment and Posttest online, you can receive continuing education credits as follows:

Accrediting Organization Credits Offered

Accreditation Council for Continuing Medical Education (ACCME)

CME: The Centers for Disease Control and Prevention is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians. The Centers for Disease Control and Prevention designates this educational activity for a maximum of 1.75 AMA PRA Category 1 Credit(s)™. Physicians should only claim credit commensurate with the extent of their participation in the activity.

American Nurses Credentialing Center (ANCC), Commission on Accreditation

CNE: The Centers for Disease Control and Prevention is accredited as a provider of Continuing Nursing Education by the American Nurses Credentialing Center's Commission on Accreditation. This activity provides 1.7 contact hours.

National Commission for Health Education Credentialing, Inc. (NCHEC)

CHES: The Centers for Disease Control and Prevention is a designated provider of continuing education contact hours (CECH) in health education by the National Commission for Health Education Credentialing, Inc. This program is a designated event for the Certified Health Education Specialist (CHES) to receive 2.0 Category I contact hours in health education, CDC provider number GA0082.

International Association for Continuing Education and Training (IACET)

CEU: The CDC has been approved as an Authorized Provider by the International Association for Continuing Education and Training (IACET), 1760 Old Meadow Road, Suite 500, McLean, VA 22102. The CDC is authorized by IACET to offer 0.2 IACET CEU's for this program.

Online Instructions

To complete the Assessment and Posttest, go to Training and Continuing Education Online and follow the instructions on that page.

You can immediately print your continuing education certificate from your personal transcript online. No fees are charged.

Posttest

Please select the best correct answer

  1. Uranium is found naturally in
    1. Rocks.
    2. Soils.
    3. Animals.
    4. Water.
    5. All of the above.
    6. None of the above.
  2. Where can uranium be found in the United States today?
    1. Naturally occurring in the environment (including mine and mill tailings).
    2. At nuclear fuel production facilities.
    3. In residential and commercial products.
    4. All of the above.
    5. Both A and B only.
  3. Enriched uranium
    1. Contains more U-235 than natural uranium.
    2. Is less radioactive than natural uranium.
    3. Has diverse therapeutic uses.
    4. Is created when meteors strike the earth.
  4. Uranium is used
    1. In nuclear power plants.
    2. To counter balance helicopter blades.
    3. As armor for military vehicles.
    4. As a part of certain kinds of bullets.
    5. All of the above.
    6. None of the above.
  5. In the past, occupations that entailed exposure to uranium included which of the following?
    1. Uranium miners and millers.
    2. Repairmen and maintenance workers at uranium enrichment facilities.
    3. Nuclear fuel processors.
    4. All of the above.
  6. Of the following, who is LEAST likely to currently be at risk of significant environmental uranium exposure? A person
    1. Living downwind of a uranium processing facility.
    2. Whose primary source of drinking water is a well contaminated by naturally occurring uranium.
    3. Living near a mine undergoing remediation activities.
    4. Living near a nuclear power plant.
  7. In general, exposure to uranium in the natural environment occurs primarily via
    1. Inhalation.
    2. Ingestion.
    3. Dermal contact.
    4. None of the above.
  8. Which of the following is false regarding the OSHA PEL of 0.05 mg/m3 for airborne soluble uranium in the workplace?
    1. It is an 8-hour, time-weighted average.
    2. It is lower than the insoluble uranium OSHA PEL because soluble uranium compounds are absorbed to a greater extent by the body.
    3. It is higher than the insoluble uranium OSHA PEL.
    4. For the same exposure, soluble uranium compounds are more likely to cause chemical effects than insoluble uranium.
  9. EPA's MCL of 30 micrograms per liter of uranium in drinking water refers to which of the following?
    1. The EPA marginal clean-up level for drinking water.
    2. The EPA maximum contaminant level allowed in drinking water.
    3. The EPA minimum contaminant level allowed in drinking water.
    4. None of the above.
  10. Most inhaled uranium that reaches the lungs
    1. Becomes lodged and is retained in lung tissue.
    2. Is eliminated via mucociliary clearance.
    3. Is absorbed.
    4. Is exhaled.
  11. The radioactivity from uranium is primarily
    1. Alpha particles.
    2. Beta particles.
    3. Gamma rays.
    4. Muons.
    5. All of the above.
    6. None of the above.
  12. Exposure to natural uranium increases a person's risk of getting cancer
    1. True.
    2. False.
  13. Exposure to uranium is associated with
    1. Heart disease.
    2. Emphysema.
    3. Rheumatologic disease.
    4. Renal disease.
    5. Neurodegenerative disease.
    6. All of the above.
    7. Only B and D.
    8. None of the above.
  14. The most typical biomarkers of effect for a patient with uranium nephrotoxicity is
    1. Increased â2-microglobulin on urinalysis.
    2. Aminoaciduria.
    3. Proteinuria.
    4. All of the above.
  15. Why is it important to know a patient's exposure history?
    1. The biomarkers of effect are not unique to uranium exposure.
    2. Other concurrent exposures may be more toxic and more important to future patient care.
    3. It is important to determine if exposures are ongoing or occurred in the past.
    4. All of the above.
  16. Biomarkers of uranium exposure include
    1. The presence of uranium in feces.
    2. Pathognomonic changes in an EMG (electromyogram).
    3. The chemical or radiological detection of uranium in the urine.
    4. Both A and C.
    5. All of the above.
    6. None of the above.
  17. Standard treatment modalities in the United States for patients with acute uranium nephrotoxicity include which of the following?
    1. Administration of sodium bicarbonate.
    2. Urine monitoring for pH, uranium concentration and biomarkers of effect.
    3. Chelation.
    4. Both A and B.
    5. All of the above.

Relevant Content

To review content relevant to the posttest questions, see:

Question Location of Relevant Content
1

What Is Uranium?

2

Where Is Uranium Found?

3

What Is Uranium?

4

What Is Uranium?

5

Who Is at Risk of Exposure to Uranium?

6

Who Is at Risk of Exposure to Uranium?

7

What Are Routes of Exposure for Uranium?

8

What Are Standards and Regulations for Uranium Exposure?

9

What Are Standards and Regulations for Uranium Exposure?

10

What Is the Biologic Fate of Uranium in the Body?

11

How Does Uranium Induce Pathogenic Change?

12

How Does Uranium Induce Pathogenic Change?

13

What are the Physiologic Effects of Uranium Exposure?

14

Clinical Assessment

15

Clinical Assessment

16

Clinical Assessment

17

How Should Patients Exposed to Uranium Be Treated and Managed?

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