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Table 1 Eligibility criteria and recruitment process

From: Using video reflexive ethnography to explore the use of variable rate intravenous insulin infusions

Eligibility criteria

Inclusion criteria

Healthcare practitioners who are:

1. Willing to be observed by video recording.

2. Working in the Vascular Surgery Unit.

3. Managing/dealing with patients on VRIII.

Patients who are:

1. Aged ≥18 years old.

2. Receiving VRIII for at least 24 h to treat elevated BG.

3. Under the care of a healthcare practitioners who have consented to participate in this study.

4. Able to provide informed consent.

Exclusion criteria

Healthcare practitioners who are:

1. Not willing to be observed by video recording.

2. Not working in the Vascular Surgery Unit.

3. Not involved in the use of VRIII.

Patients who are:

1. Not willing to be observed by video recording.

2. Not prescribed VRIII.

3. On IV insulin and glucose infusion for hyperkalaemia (potassium levels > 5.5 mmol/L).

4. Unable to provide informed consent.

5. Non-English speakers.

Recruitment

Healthcare practitioners

To recruit potential healthcare practitioners, an invitation letter and participant information sheet outlining the purpose of the study, the methodology, and the design was first sent by the Unit clinical and managerial lead to all potential healthcare practitioners. Then the researcher (MI) met the healthcare practitioners working in the Unit in two ward meetings and explained the study aims and process. Informed consent was then taken from interested healthcare practitioners. A poster with details about the study was also placed in the staff room until the completion of data collection.

Patients

The study site collaborator with a pharmacist team identified potential patient participants. The researcher confirmed with the senior nurse the appropriateness of the patient before recruiting them. This is in addition to whether the patient had the capacity to consent. Once agreed, the researcher provided an invitation letter and participant information sheet to the patient and explained the purpose and objectives of the study and that as part of filming the work of healthcare practitioners, some parts of their body might appear in the video recordings (arm, leg, etc.). The researcher asked the patient if they had any questions about the study before taking written informed consent.