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Picture of Pediatric and Adult CT Doses - Book and Test
SKU: R235
SKU: R235T

Pediatric and Adult CT doses

1.25 ARRT Category A CEUs
Instructional Videos:

1.25 ARRT Credits
Credit Type:  Category A
California Accepted: Yes
California Digital Requirement:  No
California fluoroscopy permit requirement accepted:  Yes
California X-ray Supervisor/Operator: Yes
Texas: Direct Credit
Florida: Technical Credit
Florida Provider #3200618
Accepted by ARRT
Accepted by NMTCB
Registered Nurse: Approved for 1.25 Contact Hours
All of our courses are accepted by the State Nursing Boards, except for the following states:
Delaware, Georgia, Minnesota and Utah
Our Nursing provider number is: California Nurse Provider #CEP13196

This timely article describes the use of a size metric that involved the physical dimensions of the patient (anteroposterior [AP], lateral, AP+lateral, or effective diameter), in combination with scanner output (CTDIvol), to determine size-specific dose estimates (SSDE) from CT scanning. Patient dimension can be determined using physical or electronic tools. Physical devices, such as the calipers that were frequently used in radiography before the routine use of phototiming, may be used to measure patient thickness in the AP or lateral directions. Alternatively, electronic measurement tools can be used to measure physical dimensions from either the CT localizer radiograph or an axial CT image. The conversion factors used tocalculate SSDE from CTDIvol reported in AAPM Report 204 were derived from experimental and Monte Carlo data and normalized to patient size in terms of water- or tissue-equivalent materials. 


No matter which type of course you purchase, (complete course, download test, fax or online) you can take your test through our on-line testing site.
If you order any of the "Test Only" options, it DOES NOT INCLUDE THE BOOK.

Upon completion of this course the participant should be able to:

  1. Define the CTDIvol used to normalize the conversion factors.
  2. Explain how to determine the lateral dimension in the absence of a CT radiograph.
  3. Describe the conversion factors based on the use of the 32 cm diameter PMMA phantom for CTDIvol.
  4. Explain how to convert patient age to effective diameter of the patient.
  5. Show the language suggested by pediatric radiologists when reporting the CTDIvol in the radiology report


Purchase your course and use the test key provided to take your test online. There is no extra charge for online testing and you will get immediate results. You can start and stop your test at any time so you can work at your own pace. Your test key is found on your receipt, under the description of your purchase.

This test is a multiple choice, open book test and contains 12 questions.
This is a hard cover book and has 9 sections and 26 pages.

When you order a complete course, you will receive a text book, question booklet and answer sheet. Your order will ship within 24 hours of receipt of order and you should receive your order by mail in 3-5 business days.
When you order a test only for mailing, you will receive a test booklet and an answer sheet. Your order will ship within 24 hours of receipt of order and you should receive your order by mail in 3-5 business days.

If you would like to download the test, please choose the download test option. You can then sign in to your account and download the test booklet and answer sheet.

If you plan to take the test online, please be sure you have the course book, as the online testing option does not include the course book.

If you would like to have this test faxed to you, please be sure that you have the textbook and question booklet. You will receive your test the same day. With a passing grade of 75%, your certificate will usually be mailed the next business day. If you fax your answer sheet, your certificate is usually faxed to you the same day. If you do not pass the first time, we will send you another answer sheet at no cost for you to try again. You will have three chances to pass, at no additional cost to you. However, it is very rare for someone to fail a test.

If you have any questions, please call our customer service department at 877-775-4243.

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