Last updated: May 2026
Next review: May 2028
Example of Variable Insulin Dosing
Diabetes Services
Patient Specific Direction (PSD) Guidance
This page provides an example of how insulin doses may be adjusted using a Patient Specific Direction (PSD). Variable insulin dosing allows healthcare professionals to tailor insulin treatment to an individual’s blood glucose readings, clinical condition, and prescribed care plan.
Important: Insulin doses should only be adjusted in accordance with the patient’s prescribed PSD and local clinical guidelines.
What Is Variable Insulin Dosing?
Variable insulin dosing involves adjusting insulin doses based on factors such as:
- Blood glucose levels
- Meal intake
- Illness or infection
- Physical activity
- Individual treatment goals
This approach helps maintain blood glucose levels within the target range.
Example of a Variable Dosing Schedule
| Blood Glucose Level | Example Action |
|---|---|
| Below target range | Follow local hypoglycaemia guidance |
| Within target range | Continue prescribed insulin dose |
| Above target range | Consider dose adjustment according to PSD |
| Significantly above target range | Follow escalation guidance and seek clinical advice if required |
Always refer to the patient’s individual PSD for exact dosing instructions.
Before Administering Insulin
Ensure that:
- The correct patient has been identified
- Blood glucose has been checked
- The correct insulin has been selected
- The prescribed PSD has been reviewed
- Any concerns have been discussed with the appropriate clinician
Monitoring and Documentation
Record:
- Blood glucose readings
- Insulin dose administered
- Date and time of administration
- Any symptoms or concerns
- Actions taken following abnormal readings
Accurate documentation supports safe and effective diabetes care.
Further Information Available
This webpage provides an overview of variable insulin dosing under a Patient Specific Direction.
For full dosing schedules, administration guidance, and escalation procedures, please refer to the relevant PSD documentation and local clinical policies.




