Are you familiar with the NHS's six core values?
The NHS places a great emphasis on their NHS Constitution, which contains their guiding values and principles. The interviewer will likely ask a question to test your knowledge of the six core values, as it will be an expectation that you demonstrate them if offered a position. These are important to know so that you can weave your alignment into not only this answer but also other relevant questions throughout the interview.
"I'm very familiar with the NHS Constitution and the guiding principles and values. The six core values include respect and dignity, commitment to quality of care, compassion, improving lives, working together for patients, and the belief that everyone counts. I align with all these core values of the NHS and live them out each day in the work that I do as an ECA. These values allow us to have a standard expectation and drive quality and excellence in care."
