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  • Title: What do tests do for doctors? A qualitative study of blood testing in UK primary care.
    Author: Watson J, de Salis I, Banks J, Salisbury C.
    Journal: Fam Pract; 2017 Nov 16; 34(6):735-739. PubMed ID: 28985303.
    Abstract:
    BACKGROUND: Rates of blood testing are rising with significant geographical variability. Most research into diagnostic testing focuses on the role of tests in diagnostic decision-making. OBJECTIVE: The aim of this study was to explore the non-medical motives for blood testing by considering what tests do for doctors, through qualitative interviews with general practitioners (GPs). METHODS: We undertook 23 in-depth semi-structured interviews with UK GPs. Reasons for performing recent inflammatory marker blood tests were explored by reviewing GPs pathology inboxes to ground discussions in real-life clinical practice. Interviews were transcribed verbatim and analysed using a grounded theory approach. RESULTS: Blood tests offer doctors a tool to manage uncertainty; within a context of increased litigation, risk aversion and reduced continuity of care. Tests can also be offered as a 'gift' for patients, a way to be seen to be 'doing something'; in the social context of time pressures and perceived patient pressures. There was a tension however. On the one hand, doctors talked about using tests for reassurance and as a 'gift' offering 'truth'. Yet paradoxically, they also discussed the challenges of uncertainty and anxiety from inconclusive test results. CONCLUSION: Our study emphasises that defining 'unnecessary' blood testing may not be as simple as determining medical criteria for testing; psychosocial reasons may be equally valid and interlinked. Further research is needed to help GPs manage uncertainty within the context of a risk averse society, and to explore the congruence and dissonance between doctors' and patients' perceptions of testing.
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