Ionizing Radiation


4.2 out of 5 (8 Reviews)



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Expiration Date

31 Dec 2023

Last Reviewed

1 Jan 2021

Estimated Time To Finish

90 Minutes

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Activity Description

Ionizing radiation has been proven to be a risk factor for malignancy in the future. Evidence from studies conducted following the Chernobyl accident, nuclear tests, environmental radiation pollution, and accidental indoor contamination reveals consistently increased chromosome aberration and micronuclei frequency in those exposed to ionizing radiation. Ionizing radiation is of significant concern in the United States due to ubiquitous and often unnecessary imaging of patients with computerized tomography and x-rays. With the advent of multi-slice CTs, the indications for this imaging modality and its use is increasing. Although CT scans are often helpful for the clinician in making a diagnosis, they are not without risks. This risk of cancer later in life is most important for children. Ionizing radiation is cumulative. Once received, the effects remain in the body for life. As such, with increased levels of exposure to ionizing radiation to an individual, the greater the risk of malignancy later in life. Because children have more years of life remaining than adults, their cumulative risk of malignancy due to ionizing radiation is higher. This activity reviews current knowledge about ionizing radiation and highlights the role of the interprofessional team in evaluating the potential effects on patients that have received radiation exposure.

Target Audience

This activity has been designed to meet the educational needs of physicians.

Learning Objectives

At the conclusion of this activity, the learner will be better able to:

  • Describe the untoward effects of ionizing radiation.
  • Describe the sources on ionizing radiation in the treatment of patients.
  • Identify the patient population at greatest risk of untoward consequences of ionizing radiation.
  • Summarize the role of the interprofessional team in evaluating the potential affects of ionizing radiation on patients that have been exposed to it.


Each author, editor, faculty and planning committee member have completed a disclosure form indicating that neither they nor their spouse/partner has a financial interest/arrangement or affiliation that could be perceived as a real or apparent conflict of interest related to the content of this activity.

COMMERCIAL SUPPORT: This activity has received NO commercial support.

Continuing Education Accreditation Information

This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the Quillen College of Medicine, East Tennessee State University, and StatPearls, LLC. The Quillen College of Medicine, East Tennessee State University is accredited by the ACCME to provide continuing medical education for physicians.

Quillen College of Medicine, East Tennessee State University designates this activity for a maximum of 1.50 AMA PRA Category 1 CreditsTM. Physicians should only claim credit commensurate with the extent of their participation in the activity.

This activity is reported to the following Maintenance of Certification (MOC) boards:
American Board of Internal Medicine
  • Internal Medicine

Cancellation Policy: Cancellations must be received in writing and a money-back guarantee is provided if not completely satisfied.

  • StatPearls and ETSU reserve the right to cancel any course due to unforeseen circumstances. StatPearls and ETSU will not be responsible for other expenses incurred by the participant in the unlikely event that the program is canceled.

Equal Opportunity

  • StatPearls and ETSU are Equal Opportunity / Affirmative Action / Equal Access Institutions. 

Medium or Media Used:

  • Computer Requirements:  Internet Access
  • E-mail Address

Instructions for Credit

  1. Register for the activity and create a StatPearls login.     
  2. Review the required accreditation information:  Target audience, learning objectives, and disclosure information.
  3. Complete the entire self-study activity.
  4. Complete the post-test assessments.
  5. Successfully pass the post-test with a minimum score of 100%.
  6. Complete the evaluation survey. 
  7. Obtain a certificate.

StatPearls and ETSU adhere to ACCME Standards regarding commercial support of continuing medical education. It is the policy of StatPearls and ETSU that the faculty and planning committee disclose real or apparent conflicts of interest relating to the topics of this educational activity, that relevant conflict(s) of interest are resolved, and also that authors and editors will disclose any unlabeled/unapproved use of drug(s) or device(s) during their presentation. Detailed disclosure will be made prior to starting the activity.

The information provided at this CME/CE activity is for continuing education purposes only and is not meant to substitute for the independent medical/clinical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition.

  • If you need help with the system or have a question about content, please contact
  • If you have a question about the ETSU CME providership, please contact


Media Usage Rights

The contributors and editors of StatPearls have attested that all associated media (images and video) have been legally cleared for use with this activity.  All copyrights are reserved.


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