Case Study:

Jackie

Jackie is a pub landlady which means late nights and irregular mealtimes.

Jackie tends to rely on eating sugary foods to prevent overnight hypoglycaemia after work. Read about how Jackie and her Healthcare Team use the FreeStyle Libre 2 system and LibreView to reduce overnight hypoglycaemia without relying on sugary foods.

Patient Image - Jackie
Patient Image - Jackie
Patient Image - Jackie

About Jackie

Summary

Jackie is a pub landlady which means late nights and irregular mealtimes. She enjoys meeting her customers, but sometimes the temptation of having a drink can be too much. She is also overeating to prevent hypoglycaemia overnight.

Specific Objective

Reduce the incidence hypoglycaemia overnight.

Age56BMI31.4 kg/m2
Diabetes (Type)Type 2 diabetesLast HbA1c value61.0 mg/dL (7.7%)
ProfessionPub landladyTarget glucose range70-180 mg/dL
Duration of diabetes9 yearsTreatmentBasal-bolus insulin therapy

Consultation One

What does the four step review tell us?

Data capture and Time in Range (TIR)

Data capture is 70%, which is the minimum recommended for confident interpretation of an AGP report. Jackie’s Time in Range is 55%, below the target level but not unusually low. Jackie has a fairly narrow blue-shaded band, which indicates low day-to-day variability. Congratulate her on this achievement.

Jackie - AGP Report

Look for patterns of hypoglycaemia

Although the blue median line does not reach the lower target range, Jackie’s darker blue and outer grey bands are slipping towards 3.9 mmol/L overnight, putting her at risk of hypoglycaemia. A review of the daily profiles in the Weekly Summary reports does indicate that she is experiencing periods of nocturnal hypoglycaemia, which is a concern. No readings below 3.0 mmol/L are evident on the AGP, but the overall trend here needs to be addressed as a priority.

Jackie - Weekly Summary

Look for patterns of hyperglycaemia

There is a gradual rise in Jackie’s glucose levels as the day progresses until 9:00pm in the evening, with a noticeable spike of hyperglycaemia at 12.00pm and a more-extended high from 5:00pm to 11:00pm. This is confirmed by a look at Jackie’s Weekly Summary reports, where this trend is a feature of most individual daily profiles.

Jackie - AGP Report

Look for patterns of glucose variability

Jackie’s blue-shaded band is consistently narrow, meaning she has low day-to-day variability; her outer grey band is wider, especially at night. There is a lot of air under the clouds for most of the afternoon and evening, indicating there is scope to bring her glucose down and back towards her target range without increasing the risk of hypoglycaemia. This could also increase her current Time in Range from 55% towards the target of more-than 70%. A concern is that Jackie is also not scanning her sensor every day, she should be encouraged to do this, in order to ensure her AGP report can be reviewed with confidence.


What actions might you agree with Jackie?

  • A reduction in Jackie’s basal glargine 300 is recommended to reduce the overnight incidence and risk of hypoglycaemia.

  • This may also influence Jackie’s eating and drinking habits, to prevent her ‘chasing her sugars’ with food to prevent a hypo.

  • Jackie must be counselled to scan her sensor each day to collect more data on her glucose control.

Jackie - AGP Report

Consultation Two

What does the four step review tell us?

Data capture and Time in Range (TIR)

Jackie has seen a small reduction in her Time in Range to 51%, but has been scanning her sensor more frequently, as agreed, with 90% data capture.

Daniel - AGP Report

Look for patterns of hypoglycaemia

Jackie has not experienced a single episode of hypoglycaemia in her most-recent 14-day AGP Report, confirmed in her Snapshot report. Her glucose levels are consistently within or above her target range. Having addressed her risk of hypoglycaemia, she can focus on other aspects of her glucose control.

Jackie - Weekly Summary

Look for patterns of hyperglycaemia

Jackie’s median line is still showing a tendency towards a spike in glucose levels around lunchtime. The median line is also running either high or above the target range of 10 mmol/L from 9:00am onwards. Her Time in Range has dropped from 55% to 51% and has become a focus for improvement.

Jackie - AGP Report

Look for patterns of glucose variability

The width of the blue and grey shaded bands on Jackie’s profile have been significantly reduced, except for during the evening hours and the median line is flatter than before. Her glucose variability is 34.6%, below the target threshold of 36%, so a good outcome!


What actions might you agree with Jackie?

  • The elimination of the threat of hypoglycaemia provides an opportunity to address Jackie’s median glucose levels and improve her Time in Range; this can be done by slowly titrating up her insulin glargine dose to achieve success.

  • Jackie may benefit from the introduction of bolus insulin to prevent her lunchtime excursion, but the complexities of the regimen and her busy lifestyle may lead to compliance issues.

  • Because of her hectic and unpredictable lifestyle, careful consideration should be made before making any changes to Jackie’s treatment.

Jackie - AGP Report

Case Study: Ruby

Case Study: Daniel

References & Disclaimers 
Images are for illustrative purposes only. Not actual patient or data.

Cookie Policy

FreeStyle Libre uses cookies to give you the best possible service. By using our website, you consent to the use of cookies. 

Data protection