CDE Monitoring Techniques 4

Question 1

A pregnant woman with type 1 diabetes asks about CGM use during pregnancy. What is the recommended glucose target range for pregnant women using CGM?

Accepted Answer

63–140 mg/dL for >70% of the time

Answer

ADA recommends a tighter CGM target of 63–140 mg/dL for >70% TIR during pregnancy to optimize fetal outcomes.

Question 2

Which site is generally associated with the SLOWEST glucose absorption, making it least reliable for detecting rapid glucose changes?

Accepted Answer

Forearm (alternate site)

Answer

Alternate sites such as the forearm have slower capillary glucose equilibration and are unreliable for detecting rapidly changing glucose values.

Question 3

A glucometer displays an 'HI' reading instead of a numerical value. This typically indicates blood glucose is:

Accepted Answer

Above the meter's upper measurement limit (usually >600 mg/dL)

Answer

'HI' indicates the glucose exceeds the meter's upper measurement limit, typically >600 mg/dL, and requires immediate clinical evaluation.

Question 4

What is the primary limitation of the Ambulatory Glucose Profile (AGP) report for clinical decision-making?

Accepted Answer

It requires at least 14 days of CGM data and does not reflect acute changes in therapy

Answer

AGP requires at least 14 days of CGM data to generate a representative 24-hour glucose pattern and reflects past rather than current management.

Question 5

A patient reports that her CGM repeatedly alarms for hypoglycemia at night but fingerstick readings taken at the alarm show 90–100 mg/dL. The MOST likely explanation is:

Accepted Answer

Interstitial glucose lags behind blood glucose during nocturnal glucose recovery

Answer

During nocturnal glucose recovery from a low, interstitial glucose lags behind the rising blood glucose, causing the CGM to still read low when blood glucose has already recovered.

Certified Diabetes Educator Test Practice Test

Certified Diabetes Educator Test Practice Test

CDE Monitoring Techniques 4