Download

Free Med Pocket Cards

Rationale of the Week | Understanding Ankle Brachial Index – What is True?

For last week’s practice question, we quizzed participants on understanding ankle brachial index. 68% of respondents chose the best answer. We want to clarify and share this important information, so you can pass it on to people living with diabetes and your colleagues, plus prepare for exam success!

Before we start though, if you don’t want any spoilers and haven’t tried the question yet, you can answer it below: Answer Question 

Lightbulb and text: Rationale of the Week

Question:  People of color living with diabetes are at increased risk of lower extremity complications and amputations. Ankle-Brachial Index (ABI) measures lower extremity vessel disease in individuals with diabetes and is an important tool to evaluate risk of future complications.  

Which of the following is true regarding ABI?

Answer Choices:

  1. ABI result of less than 0.90 indicates peripheral arterial disease.
  2. ABI compares brachial systolic blood pressures between left and right arms.
  3. People with bounding pulses in lower extremities benefit from ABI testing.
  4. ABI testing can only be conducted by a vascular specialist.
Pie chart explaining ABI testing results.

Getting to the Best Answer

If you are thinking about taking the certification exam, this practice test question will set you up for success. Test writers anticipate possible answers based on the details in the question. They will wave those “juicy answers” right under your nose. Your job is to weed through the particulars, pluck out the most important elements and choose the BEST answer.

Answer 1 is correct. 67.75% chose this answer. “ABI result of less than 0.90 indicates peripheral arterial disease.” GREAT JOB.  The ABI is a ratio that measures arterial perfusion in the upper extremities compared to the lower extremities. In brief, the ABI compares the systolic brachial pressure in the arm to the systolic pressure of the lower extremity (using the posterior tibial or dorsalis pedis pressure). To indicate adequate arterial circulation, the lower extremity pressure should be equal to the brachial pressure, or a ratio of 0.99 or better. Therefore, an ABI of less than 0.99 indicates decreased arterial circulation in lower extremities; an alert of peripheral arterial disease (PAD) People with peripheral arterial disease may also complain of pain in calves, legs or buttocks when walking that is relieved by stopping movement. Discovery of PAD requires referral to a specialist to determine next steps to treat PAD and to mitigate future risk of lower extremity complications and heart disease. For more info, we offer a FREE webinar called 3 Steps to DeFeet Amputation. Assess, Screen Report.

Answer 2 is incorrect. 9.0% of you chose this answer. “ABI compares brachial systolic blood pressures between left and right arms.”  The ABI is a ratio that measures arterial perfusion in the upper extremities compared to the lower extremities. In brief, the ABI compares the systolic brachial pressure in the arm to the systolic pressure of the lower extremity (using the posterior tibial or dorsalis pedis pressure). For more info, we offer a FREE webinar called 3 Steps to DeFeet Amputation. Assess, Screen Report.

Answer 3 is incorrect. About 14.5% of respondents chose this. “People with bounding pulses in lower extremities benefit from ABI testing.”  Bounding pulses in the lower extremity is a positive sign of adequate lower extremity circulation. For more info, we offer a FREE webinar called 3 Steps to DeFeet Amputation. Assess, Screen Report.

Finally, Answer 4 is incorrect. 8.75% chose this answer. “ABI testing can only be conducted by a vascular specialist.”  ABI can be conducted in a variety of medical settings as long as the health care professional has completed training on how to perform an accurate ABI,  For more info, we offer a FREE webinar called 3 Steps to DeFeet Amputation. Assess, Screen Report.

We hope you appreciate this week’s rationale! Thank you so much for taking the time to answer our Question of the Week and participate in this fun learning activity!

Why become a CDCES?
Three Reasons from Coach Beverly

Read More: 3 Reasons to Become a CDCES

The best part of becoming a CDCES is working with my colleagues and people living with diabetes. As diabetes educators, we hear compelling and beautiful life stories. I am astounded by the barriers they face and inspired by their adaptability, problem-solving skills, and resilience.

– Coach Beverly Thomassian, RN, MPH, CDCES, BC-ADM

Reason 1: CDCES is a widely recognized certification by employers and health care professionals throughout the U.S.  This credential demonstrates a specialized and in-depth knowledge in the prevention and treatment of individuals living with pre-diabetes and diabetes.

Reason 2: Currently, 13% of people in the U.S. have diabetes and another 36% have pre-diabetes which means 49% of Americans are running around with elevated blood glucose levels.  Given this epidemic, there will be plenty of future job opportunities.

Reason 3: Having my CDCES along with my nursing degree, has opened many doors of opportunity; from working as an inpatient Diabetes Nurse Specialist in a hospital to working as a Manager of Diabetes Education in the outpatient setting to starting my own consulting company.

  • Exam requirement updates and eligibility
  • New test format starting in July 2024
  • Strategies to succeed along with a review of study tips and test-taking tactics.
  • We will review sample test questions and the reasoning behind choosing the right answers.
  • Learn how to focus your time and prepare to take the CDCES Exam.
  • We provide plenty of sample test questions and test-taking tips!

Can’t join us live?

Don’t worry, we will send you a link to the recorded version.

 

Instructor

Coach Beverly Thomassian, RN, MPH, BC-ADM, CDCES

Author, Nurse, Educator, Clinician, and Innovator, Beverly has specialized in diabetes management for over twenty years and has successfully passed the CDCES exam six times. As president and founder of Diabetes Education Services, Beverly is dedicated to optimizing diabetes care and improving the lives of those with diabetes.

Becoming a Certified Diabetes Care and Education Specialist (CDCES) is one of the best professional and personal decisions I have ever made.” – Coach Beverly Thomassian

Sign up for Diabetes Blog Bytes – we post weekly Blog Bytes that are informative and FREE! Every week we post one exam practice Question of the Week and Rationale of the Week. Sign up below!

The use of DES products does not guarantee the successful passage of the diabetes certification exams. CBDCE & ADCES does not endorse any preparatory or review materials for the certification exams, except for those published by CBDCE & ADCES.

**To satisfy the requirement for renewal of certification by continuing education for the Certification Board for Diabetes Care & Education (CBDCE), continuing education activities must be applicable to diabetes and approved by a provider on the CBDCE List of Recognized Providers (www.ncbde.org). CBDCE does not approve of continuing education. Diabetes Education Services is accredited/approved by the Commission of Dietetic Registration which is on the list of CBDCE Recognized Providers.