Diabetes: Diagnosis, Laboratory Testing, and the Current American Diabetes Association Guidelines (Online CE Course)

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Authors: Mary Ellen Koenn, MS, MLS(ASCP)
Co-author and Reviewer: David J. Moffa, PhD, BCLD

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Diabetes is a national and international healthcare issue due to its high incidence and healthcare costs. The diabetic patient is at risk for many serious complications and may experience a diminished quality of life. This course will primarily focus on recommendations made by the American Diabetes Association (ADA) that are related to the diagnosis and monitoring of diabetes. Three case studies are followed throughout the course as laboratory tests are chosen that will lead to a probable diagnosis based on the recommendations of the ADA. Recommended tests for monitoring diabetic patients are also discussed.

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Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 2 hour(s)
Approved through 5/31/2022
Florida Board of Clinical Laboratory Personnel Credit Hours - General (Clinical Chemistry/UA/Toxicology): 2 hour(s)
Approved through 9/1/2022


  • Define diabetes and differentiate between type 1 and type 2 diabetes.
  • Discuss gestational diabetes and other causes of diabetes.
  • Explain the role of the clinical laboratory in the diagnosis and monitoring diabetes.
  • Discuss the signs and symptoms of diabetes.
  • List the common ways to prevent, manage, and treat diabetes.
  • Identify clinical and laboratory criteria that indicates increased risk for diabetes.
  • List the current assays used to monitor diabetic patients.
  • Explain the recommendations made by the American Diabetes Association in regards to diagnosis and monitoring of diabetes.

Customer Ratings

(based on 1,282 customer ratings)

Course Outline

Click on the links below to preview selected pages from this course.
  • Overview of Diabetes: Definition and Facts
      • Organizations and Agencies
      • Diabetes: Definition
      • Which of the following statements about insulin are TRUE? (Select all that apply.)
      • Diabetes: Facts
      • Diabetes: A Metabolic Disorder
      • True or false? There is an emerging global epidemic of diabetes that has been traced to rapid increases in overweight people, including obesity, and p...
  • Blood Glucose and Hormonal Control
      • Blood Glucose and Hormonal Control
      • Blood Glucose and Hormonal Control (continued)
      • Blood Glucose and Hormonal Control (continued)
      • _________________ is the metabolic process whereby glycogen is broken down or hydrolyzed in the liver into glucose which is released into the bloodstr...
      • Which statement s are TRUE about the roles of insulin and glucagon in the regulation of normal blood glucose? (Select all that apply.)
      • Which of the following hormones is mainly responsible for the entry of glucose into the cell for energy production?
  • Classification of Diabetes
      • The Four Clinical Classes of Diabetes
      • Which of the following statements are TRUE with regard to the clinical classes of diabetes? (Select all that apply.)
      • Type 1 Diabetes
      • Type 2 Diabetes
      • Type 2 Diabetes: Prediabetes
      • True or false: Class 2 diabetes was formerly called insulin dependent diabetes mellitus (IDDM) or juvenile-onset diabetes and most often occurs in chi...
      • When is Diabetes Classified as Type 1 or Type 2?
      • Gestational Diabetes (GDM)
      • Diabetes Due to Other Causes
      • Which of the following statements correctly describe gestational diabetes (GDM)? (Select all that apply.)
  • Risk, Complications, and Management of Diabetes
  • Screening for Diabetes and Updated ADA Guidelines
      • American Diabetes Association (ADA) Guidelines: 2018 Update
      • ADA Guidelines: 2018 Update (continued)
      • ADA Guidelines: Criteria for Diabetes Diagnosis
      • ADA Testing Guidelines for Type 2 Diabetes and Prediabetes in Asymptomatic Adults
      • ADA Guidelines: Categories of Increased Risk for Diabetes (Prediabetes)
      • ADA Targets for Monitoring Glycemic Control (Hb A1c)
      • Which test/result combinations meet the ADA criteria for diabetes diagnosis? (Select all that apply.)
      • A patient Hb A1C level of 6.0% would be considered an increased risk for prediabetes.
  • Laboratory Assays in Evaluating Diabetic Patients
      • Clinical Laboratory Testing
      • Blood Glucose Testing
      • Whole Blood Glucose Testing
      • Urine Glucose
      • One of the most common methods used to quantify blood glucose levels is the ________________ method.
      • Urinary Albumin and Testing for Microalbuminuria
      • Testing for Ketones
      • Insulin and C-Peptide
      • Insulin Antibodies
      • Which laboratory test is used to identify early renal impairment in diabetic patients?
      • Glycated Proteins and Hb A1C
      • Hb A1C versus Blood Glucose Measurement
      • Fructosamine
      • Oral Glucose Tolerance Test (OGTT)
      • Continuous Glucose Monitoring (CGM)
      • Since the concentration of A1C relates to an individual's average blood glucose over the life span of the red blood cell (120 days), the A1C test can ...
      • What is the ADA's 2018 recommendation for the use of continuous glucose monitoring (CGM) technology?
  • Estimated Average Glucose (eAG)
      • Estimated Average Glucose
      • The Relationship Between Hb A1C and Estimated Average Glucose (eAG)
      • The formula for conversion of Hb A1C to glucose in mg/dL is:Estimated average glucose (eAG) = (28.7 x A1C) – 46.7The Hb A1C measured on a patien...
  • Case Studies in Diabetes
      • Case Studies
      • Case A
      • Case B
      • Case C
      • Review the previously described cases:Case ACase BCase CWhich patient(s) would be diagnosed with diabetes according to the criteria for diagnosis?
      • Case A:A 50-year-old male with a family history of diabetes visits his physician for routine physical. He reports that he feels his health is excellen...
  • The Laboratory's Role in Diabetes
      • The Laboratory's Role in Diagnosis and Monitoring of Diabetes
  • References

Additional Information

Level of instruction: Intermediate

Intended Audience: Clinical laboratory technologists and technicians, and other health care personnel who have an interest in this subject matter. This course is also appropriate for clinical laboratory science students and pathology residents.
Author information: Mary Ellen Koenn, MS, MLS(ASCP) is an associate professor emeritus, West Virginia University School of Medicine, Medical Laboratory Science Program. During her career as a medical technologist and educator, she has been a laboratory supervisor and manager and has held several teaching positions. She is the author of numerous articles for laboratory publications and textbook chapters and is a frequent presenter at laboratory seminars and workshops. Ms. Koenn holds a Master of Science degree in Medical Technology.
Reviewer Information: David J. Moffa, PhD, BCLD, has over 30 years of experience in the healthcare industry as an executive manager, clinical laboratory director, and medical laboratory scientist. He is currently a technical consultant for Kentmere Healthcare, Wilmington, DE, and until his retirement, was the Regional Director for LabCorp, Inc. He holds a PhD in medical biochemistry from the School of Medicine, West Virginia University.

How to Subscribe
MLS & MLT Comprehensive CE Package
Includes 147 CE courses, most popular
$95Add to cart
Pick Your Courses
Up to 8 CE hours
$50Add to cart
Individual course$20Add to cart
Need multiple seats for your university or lab? Get a quote


urine glu testing