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Rationale of the Week | CGM Timing Post-T1D Diagnosis: ADA 2025

For last week’s practice question, we quizzed participants on CGM Timing Post-T1D Diagnosis: ADA 2025. 95% 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:  JT, a 17-year-old recently hospitalized with a new diagnosis of type 1 diabetes, is using
Multiple Daily Injections (MDI) therapy. JT uses fingerstick blood glucose monitoring but
wants to move to a CGM. JT’s mother wants to know how long fingerstick monitoring must
be used before a CGM can be started. According to the ADA 2025 Standards of Care, when
can a CGM be initiated after a type 1 diabetes diagnosis?

Answer Choices:

  1. CGM is to be initiated when an individual with type 1 diabetes does not meet glycemic
    targets.
  2. CGM is to be initiated only when an individual with type 1 diabetes is started on
    continuous subcutaneous insulin infusion (CSII) therapy.
  3. CGM can be initiated when an individual with type 1 diabetes is ready and able, and the individual or caregiver has been educated on its use, even at diagnosis.
  4. CGM is to be initiated when an individual with type 1 diabetes is over the age of 18.

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 incorrect. 1% chose this answer, “CGM is to be initiated when an individual with type 1 diabetes does not meet glycemic targets”. Since CGM is not used only for those with elevated glucose levels, this is not the best answer. 

Answer 2 is incorrect. 1% of you chose this answer, “CGM is to be initiated only when an individual with type 1 diabetes is started on continuous subcutaneous insulin infusion (CSII) therapy”. Actually, CGM technology can be used with or without CSII (either standard pump or AID systems).

Answer 3 is correct. About 95% of respondents chose this, “CGM can be initiated when an individual with type 1 diabetes is ready and able, and the individual or caregiver has been educated on its use, even at diagnosis.” GREAT JOB!  According to the American Diabetes Association 2025 Standards of Care, CGM technology can be initiated in any person living with diabetes on insulin therapy as early as diagnosis. The diabetes education specialist will use an individualized approach in choosing the most appropriate CGM technology and educating the individual and caregiver on how to use it.

Finally, Answer 4 is incorrect. 1% chose this answer, “CGM is to be initiated when an individual with type 1 diabetes is over the age of 18.” According to the ADA 2025 Standards of Care, CGM technology should be offered to any adult or youth using insulin therapy. Some CGM devices are approved for use in the pediatric population (refer to each specific CGM for approval for use in children).

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!

Join us for this upcoming ADA Standards Webinar!

Level 2: From Tots to Teens with Diabetes

Join us live today June 12, 2025, at 11:30 am PST

This course is part of Level 2 – Standards of Care.

Course Overview:
This course covers updated care goals and guidelines for children with type 1 or type 2 diabetes. Topics include clinical presentation, developmentally appropriate care, complication prevention, and family support.

Learn anytime, anywhere with 1-year access. Each course includes a video, podcast, practice test, and resources.

Objectives:

  • Identify care goals for kids with Type 1 and Type 2 diabetes

  • Outline strategies to prevent complications

  • Emphasize positive psychosocial support

Learning Outcome:
Gain a thorough understanding of individualized care and standards for pediatric diabetes management.

Buy individually for $29 or get the full Level 2 Bundle and save 45% (discount applied). Don’t worry if you cannot attend, the course includes access to the recording for one year!

All hours earned count toward your CDCES Accreditation Information

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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!

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The use of DES products does not guarantee the successful passage of the certification exam. CBDCE and ADCES do not endorse any preparatory or review materials for the CDCES or BC-ADM 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.cbdce.org). CBDCE does not approve continuing education. Diabetes Education Services is accredited/approved by the Commission of Dietetic Registration which is on the list of CBDCE Recognized Providers.

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