Physicians' and Nurses' Online Course in Limited Obstetric Ultrasound

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This online course has been designed to instruct learners in the performance of "limited obstetric ultrasound". The American Institute of Ultrasound in Medicine (AIUM) defines a "limited ultrasound" as one which is "performed when a specific question requires investigation" (see "AIUM Practice Guidelines for the Performance of an Antepartum Obstetric Ultrasound Examination" —

This course is an outgrowth of the need seen for a limited obstetric ultrasound course to train medical personnel in the performance of limited obstetric ultrasound. The course follows an over 10-year history of instruction in limited ultrasound courses and now uses web-based technology to enhance the availability of such training. It follows the models for adult learning with the use of multiple modalities and repetition to achieve learning.

The course is original in its content and organization. It follows the guidance of both the American Institute of Ultrasound in Medicine (AIUM) and the American College of Obstetricians and Gynecologists (ACOG) for training individuals in limited obstetric ultrasound.

The Instructors

Byron C. Calhoun, MD, FACOG, FACS, MBA
Dr. Byron C. Calhoun, MD, FACOG, FACS, MBA is a diplomate board certified by the American Board of Obstetricians and Gynecologists in general Obstetrics and Gynecology and in the sub-specialty of Maternal-Fetal Medicine (high-risk obstetrics. He has over 20 years of ultrasound experience including complex prenatal diagnosis and ultrasound education of medical students, nurses, residents, and fellows.

Dr. Calhoun has authored over 60 scientific peer review articles in the Obstetrics and Gynecologic literature, presented over 100 scientific papers, and participated in over 40 research projects.

Dr. Calhoun presently serves as Professor and Vice Chair in the Department of Obstetrics and Gynecology at the West Virginia University-Charleston and is involved in resident, medical student, and sonographer education. He is licensed in several states and continues in active practice in maternal-fetal medicine, performs diagnostic ultrasounds, and participates in prenatal diagnosis and counseling.

Thomas A. Glessner, JD
Thomas A. Glessner, JD is the founder and President of NIFLA, a public interest law firm founded in 1993 committed to legal counsel.

Mr. Glessner graduated from the University of Washington School of Law in Seattle in 1977 and practiced law in the Seattle area for ten years. As the CEO and President of NIFLA, Mr. Glessner has developed and implemented legal guidelines for limited ultrasound.

Thomas A. Glessner is listed in Who's Who in American Law, is a member of the bar associations for the United States Supreme Court, the State of Virginia, and the State of Washington.

Accreditation Statement

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 Christian Medical & Dental Associations and Soli Deo Gloria, MFM. The Christian Medical & Dental Associations is accredited by the ACCME to provide continuing medical education for physicians.

Designation Statement

Christian Medical & Dental Associations designates this educational activity for a maximum of 22.0 AMA PRA Category 1 Credit(s)™. Physicians should only claim credit commensurate with the extent of their participation in the activity.


Byron Calhoun Director & Faculty N/A N/A X N/A N/A
Thomas Glessner, JD Founder and President of the National Institute of Family and Life Advocates (NIFLA) N/A N/A X N/A N/A
Barbara Snapp CE Director N/A N/A X N/A N/A
Sharon K. Whitmer Accreditation Officer N/A N/A X N/A N/A
CE Committee Reviewers SEE BELOW N/A N/A X N/A N/A

CE Committee: Bruce McFadyen, MD, Chair; Jeff Amstutz, DDS; Lindsey Clarke, MD; Stan Cobb, DDS; Gary Goforth, MD; Elizabeth Heredia, MD; Curtis High, DDS; Dale Michels, MD; Michael O'Callaghan, DDS; John Pierce, MD; Gene Rudd, MD; Barbara Snapp, CE Director; David Stevens, MD, MA; and Richard Voet, MD, Sharon K. Whitmer, EdD do not have any relevant financial relationships with any commercial interests.

Module Descriptions and Objectives

Module 1

Description: The legal aspects of providing limited ultrasound are discussed and the low risk for liability for providing limited ultrasound explained in detail. The strict guidelines for the performance of the limited ultrasound per American Institute in Ultrasound (AIUM), American College of Obstetricians and Gynecologists (ACOG), and AWWHON are stressed.

A. Discuss the legal implications of limited ultrasound in obstetrics
B. Examine the medical implications for the limited ultrasound in obstetrics
C. Implement the knowledge of limited ultrasound in obstetrics
D. Discuss why only trained medical personnel should interpret limited ultrasounds in obstetrics.

Anticipated completion time for module: 2 hours

Module 2

Description: The medical indications for limited obstetric ultrasound are discussed and training guidelines for performance of limited obstetric ultrasound are outlined. Various equipment choices are described including choice of transducers for performance of obstetric ultrasound. Completion of the posttest with a 70% passing grade is required to move to the next module.

A. Assess the medical indications for limited obstetric ultrasound
B. Evaluate the safety of diagnostic ultrasound
C. Examine guidelines for training in limited obstetric ultrasound.
D. Distinguish ultrasound transducers and their uses.

Anticipated completion time for module: 2 hours

Module 3

Description: Incidence of various fetal malformations is given along with the performance of a thorough anatomic survey. The diagnostic obstetric ultrasound with complete and thorough anatomic survey is contrasted to the limited obstetric ultrasound. The physics of ultrasound are discussed in detail. Completion of the posttest with a 70% passing grade is required to move to the next module.

A. List the incidence of malformations diagnosed by ultrasound
B. Describe the parts of a diagnostic obstetric ultrasound
C. List the reasons for medical malpractice in ultrasound
D. Outline the basic physics of ultrasound

Anticipated completion time for module: 2 hours

Module 4

Description: Biometry of the first and second trimester ultrasound are described and demonstrated with representative images. Normal anatomy is described and visualized in actual ultrasound images. Completion of the posttest with a 70% passing grade is required to move to the next module.

A. Describe biometry of first and second trimester
B. Describe normal anatomy
C. Describe the normal anatomy in the diagnostic ultrasound
D. Explain ultrasound's role in fetal well-being

Anticipated completion time for module: 2 hours

Module 5

Description: Targeted ultrasound images are contrasted with normal ultrasound images. Emphasis is placed on performance of limited ultrasound in distinction to targeted obstetric ultrasound. Ultrasound risk assessment for fetal aneuploidy is introduced and basic Doppler ultrasound described. Completion of the posttest with a 70% passing grade is required to move to the next module.

A. Evaluate the performance of the targeted obstetric ultrasound in contrast to the limited obstetric ultrasound
B. Discuss the uses of biometry in obstetric ultrasound
C. Describe the ultrasound signs for aneuploidy in ultrasound
D. List the basic principles of Doppler ultrasound in pregnancy

Anticipated completion time for module: 2 hours

Module 6

Description: Use of still images with actual measuring of biometry to emulate the skill necessary for the performance of biometry for CRL, BPD, AC, and FL. Students will be required to perform at least 250 correct image measurements (50-CRL, 50-BPD, 50 HC, 50-AC, 50-FL) and correctly measure the biometry of the fetus for this final portion of the course.

Interpret/perform crown-rump lengths (CRLs)
Interpret/perform biparietal diameter (BPD)
Interpret/perform head circumference (HC)
Interpret/perform abdominal circumference (AC)
Interpret/perform femur length (FL)

Anticipated completion time for module: 8-12 hours

NOTE: At the end of each module a short quiz of ten multiple choice questions is given. The learner must get seven of these questions correct before he/she is allowed to go to the next module.

Important Note for Nurses

It is strongly recommended that nurses attend the three-day course — Institute in Obstetric Ultrasound Coursebefore they take the online course. The online course is NOT a substitute for basic training. It is an advanced course designed to provide additional education to nurses who are providing limited ultrasound at a Pregnancy Resource Medical Clinic.

For additional assistance with this course, please contact Dr. Byron Calhoun directly at or at 304-388-1599 (office), 304-388-2915 (fax).

Information for Nurses

NIFLA is licensed by the California Board of Nursing to provide Contact Hours for nurses. Nurses taking this course can receive up to 26.4 Contact Hours from California. While the course is officially approved only for the state of California for nursing credits, most states recognize such California credits. When you have completed the course NIFLA will send to you a certificate of completion that lists the number of Contact Hours you have received and NIFLA's California provider number issued by the Board of Nursing. When you report these units to your state board you should list the name of the course and NIFLA's California provider number on the forms you are to complete for your state.

Course Cost

The cost of the course is $775 for medical personnel who are not associated with a pregnancy center that is a member of NIFLA, and $725 for those who are associated with NIFLA. To enroll, please choose either the Member or Non-Member selection below and click "enroll now".

Please note that the Ultrasound Measurement Performance module in this course requires the Macromedia Flash plugin software, which is available for free by clicking here. Other linked documents may require the Adobe Acrobat Reader software, which is available for free by clicking here.

To access the course module, please use the following address:

Physicians' Online Course in Limited Obstetric Ultrasound $725 $775
Nurses' Online Course in Limited Obstetric Ultrasound $725 $775


Review Date: August 8, 2014 • Release Date: August 20, 2014 • Termination Date: August 20, 2017

Copyright © 2017 . All rights reserved. No part of this course may be reproduced in any form, by photostate, microfilm, xerography or any other means, or incorporated into any information retrieval system, electronic or mechanical, without the express written permission of Soli Deo Gloria MFM, LLC.