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NMT/RT: Gastrointestinal Anatomy & Physiology
This course is accessible until 1/31/2026

This course is part of the Anatomy and Physiology Review for NMT/RT. This course the Gastrointestinal System or GI system, provides an overview the body's relation to the stomach and intestines, the roles of the circulatory and nervous system in the GI function, causes and clinical manifestations of upper and lower GI bleeding, and metabolic responses to injury and illness, as well as an assessment of the patient with GI disorders. Course content includes identifying abnormal findings of the GI tract and appropriate management of the critically ill patient. Also presented is the function of the accessory organs of the GI tract and normal nutrient metabolism.

This content is supported by 6 additional anatomy and physiology courses for NMT/RTs: Cardiovascular, Endocrine, Hematology, Neurology, Pulmonary, and Renal.

NOTE for Imaging: This activity may be available in multiple formats or

Upon successful completion of this course, the participant will be able to:
  1. Present a systematic approach to GI assessment.
  2. Present the circulatory system and the nervous system's role in the GI function.
  3. Identify abnormal findings associated with inspection, auscultation, percussion, and palpation.
  4. Describe diagnostic procedures and pertinent laboratory tests used in the assessment of the GI system.
  5. Distinguish between the causes and clinical manifestations of upper and lower GI bleeding.
  6. Describe the clinical manifestations of acute pancreatitis and hepatic failure.
  7. Identify the treatment modalities used in the management of acute pancreatitis and hepatic failure.
  8. List the metabolic responses to injury and illness in the critically ill patient.
  9. Review considerations and strategies required in meeting the nutritional needs of critically ill patients.

Lynne Bustraan, RN, MSN, CCRN

Lynne Bustraan, RN, MSN, CCRN, has been a Critical Care Nurse for 14 years. She graduated from the University of Central Florida with a Masters degree in Nursing. Currently, she works as a Clinical Nurse Specialist for Florida Hospital East Orlando. Her primary duties include developing and implementing process improvement initiatives, incorporating research into a practice and also serves as a primary investigator in several research studies. Presently she is working with the nutritional team to develop policies for delivery of enteral nutrition, transitional feeding, and maintenance of feeding tubes. She is an instructor for the Critical Care Multi-system Review Course.

Disclosures
This author has disclosed that there are neither conflicts of interest nor commercial affiliation with this activity.

Brian McGlone, BSN, RN

Brian McGlone, BSN, RN, graduated from Florida Hospital College of Health Sciences with his Bachelor of Science in Nursing degree in 2004. Later he worked as an Education Specialist at the Center for Nursing Education at Florida Hospital Orlando where he was responsible for the training/orientation of all new clinical employees, scheduling and tracking new employees through training programs.

Brian co-authored Falls Prevention, a computer-based learning module. He is a member of the EKG Committee, System Falls Committee, and the East Orlando Falls Performance Improvement Team. He is also an instructor in EKG, ACLS, and Gastrointestinal System.

Disclosures
This author has disclosed that there are neither conflicts of interest nor commercial affiliation with this activity.

Florida Dept of Health - Bureau of Radiation Control/AHRA: The Association for Medical Imaging Management (FLDOH-BRC/AHRA) - 1/31/2026
CE Credits: 1.00, Category: Cat A/Technical Approved - Expiration Date: 1/31/2026

Completion Requirements: To receive continuing education credit commensurate with the credit awarded for this on-line activity, the participant must:

  • View all modules and cases studies.
  • Participate and pass all Self-Checks and Post Test(s).
  • Complete and submit the on-line evaluation.

Certificates of Completion: will be available to print immediately upon finishing the completion requirements. You are encouraged to print and save your certificate for your portfolio as required by your licensing body. Interdisciplinary accredited activities, activities having multiple accreditors, will be listed individually on the Certificate of Completion.

Non-Endorsement of Products: echelon®, as an accredited provider, has demonstrated proficient experience and viable resources to provide for valid and reliable evaluation of CE activities. The accuracy of the facts and opinions contained in this activity are t

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