McDonald IG, Daly J, Jelinek VM, Panetta F, Gutman JM. Opening Pandora's box: the unpredictability of reassurance by a normal test result.
BMJ (CLINICAL RESEARCH ED.) 1996;
313:329-32. [PMID:
8760739 PMCID:
PMC2351740 DOI:
10.1136/bmj.313.7053.329]
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Abstract
OBJECTIVES
To determine the rate of failure of patient reassurance after a normal test result and study the determinants of failure.
DESIGN
Replicated single case study with qualitative and quantitative data analysis.
SETTING
University teaching hospital.
SUBJECTS
40 consecutive patients referred for echocardiography either because of symptoms (10 patients) or because of a heart murmur (30). 39 were shown to have a normal heart.
INTERVENTIONS
Medical consultations and semistructured patient interviews were tape recorded. Structured interviews with consultant cardiologists were recorded in survey form.
MAIN OUTCOME MEASURES
Patient recall of the explanation and residual understanding, doubt, and anxiety about the heart after the test and post-test consultation.
RESULTS
All 10 patients presenting with symptoms were left with anxiety about the heart despite a normal test result and reassurance by the consultant. Of 28 patients referred because of a murmur but shown to have no heart abnormality, 20 became anxious after detection of the murmur; 11 had residual anxiety despite the normal test result.
CONCLUSIONS
Reassurance of the "worried well"-anxious patients with symptoms or patients concerned by a health query resulting from a routine medical examination or from screening-constitutes a large part of medical practice. It seems to be widely assumed that explaining that tests have shown no abnormality is enough to reassure. The results of this study refute this and emphasise the importance of personal and social factors as obstacles to reassurance.
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