Using Glucometers and CGMs
How glucometers and CGMs work, how to get a reading you can trust and how to share data with your doctor.
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About this course
How glucometers and CGMs work, how to get a reading you can trust and how to share data with your doctor.
Checking your blood sugar shows you how food, activity and medicines affect you. This course explains how glucometers and CGMs work, how to get a reading you can trust and how to use strips and lancets.
You will also learn about wearing a sensor, setting up apps and alerts and sharing your data with your doctor.
What you will learn
Medically reviewed by
Dr. Shanto Arian is an internal medicine physician now specializing in clinical and aesthetic dermatology, with a parallel academic focus on epidemiology and public health. He holds an MBBS, MPH, MSc (UK), MRCP (UK), MRCPI (Ireland), Diploma in Dermatology (UK), and Diploma in Aesthetic Medicine (USA). Dr. Arian trained in internal medicine, including hospital work on hematology cases such as graft-versus-host disease, before moving toward dermatology. Skin is one of the earliest places diabetes shows itself, from acanthosis nigricans and diabetic dermopathy to slow foot wound healing, and that intersection is where his clinical and Diabic-review work meet. On Diabic, Dr. Arian medically reviews content on diabetes diagnosis, complications, dermatologic manifestations, and pharmacotherapy, ensuring every claim aligns with current ADA, NICE, and peer-reviewed literature.
For learning only. Talk to your doctor before changing medicine or habits.
Chapter 1: Why Checking Blood Sugar Matters
- MedlinePlusBlood Glucose Test: MedlinePlus Medical Test (opens in a new tab)
- American Diabetes AssociationStandards of Care 2026, Diabetes Care, Standards of Care supplement 2026 (opens in a new tab)
- American Diabetes AssociationAmerican Diabetes Association: Diabetes diagnosis (opens in a new tab)
- CDCDiabetes Testing (opens in a new tab)
- American Association of Clinical EndocrinologyGuidelines and Algorithms (opens in a new tab)
- American Diabetes AssociationStandards of Care
Chapter 2: How a Glucometer Works
Chapter 3: Taking an Accurate Reading
Chapter 4: Strips and Lancets
Chapter 5: How a CGM Works
Chapter 6: Wearing a Sensor
Chapter 7: Apps and Alerts
Chapter 8: Sharing Your Data with Your Doctor
Further reading on Diabic
- How to Use a Glucometer Step by Step for Accurate Readings
- What Your Fasting Blood Sugar Number Actually Means
- Normal Blood Sugar Levels Chart: Are You in Range?
- Fasting vs Postprandial Glucose: What's the Difference
- Blood Sugar After Food: What's Normal
- Glucometer Accuracy Factors: What Affects Results
- Diabetes Test Strips Guide: Types, Costs, Tips 2026
- Best Blood Glucose Meters for Home Testing in 2026
- CGM vs Glucometer: Which Should You Choose
- Affordable Glucose Test Strips and Budget Meters 2026
- Diabetes Supply Savings Tips That Actually Work in Real Life
- What Is a Continuous Glucose Monitoring System? How it Works
- Time in Range for Diabetes: Why It Matters
- AGP Report for Diabetes: A Visual Walkthrough
- Using a Continuous Glucose Monitor for Hypoglycemia
- Does a Continuous Glucose Monitor Hurt? What to Expect
- How to Use Your Continuous Glucose Monitor Application
- Diabetes Tracking Apps Comparison: Features and Cost
- Sharing Diabetes Data Remotely With Your Doctor
- When to Go to the ER for Diabetes: A Triage Guide