ABC of Clinical Reasoning
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About this ebook
Being a good clinician is not just about knowledge – how doctors and other healthcare professionals think, reason and make decisions is arguably their most critical skill. While medical schools and postgraduate training programmes teach and assess the knowledge and skills required to practice as a doctor, few offer comprehensive training in clinical reasoning or decision making. This is important because studies suggest that diagnostic error is common and results in significant harm to patients – and errors in reasoning account for the majority of diagnostic errors.
The ABC of Clinical Reasoning covers core elements of the thinking and decision making associated with clinical practice – from what clinical reasoning is, what it involves and how to teach it. Informed by the latest advances in cognitive psychology, education and studies of expertise, the ABC covers:
- Evidence-based history and examination
- Use and interpretation of diagnostic tests
- How doctors think – models of clinical reasoning
- Cognitive and affective biases
- Metacognition and cognitive de-biasing strategies
- Patient-centred evidence based medicine
- Teaching clinical reasoning
From an international team of authors, the ABC of Clinical Reasoning is essential reading for all students, medical professionals and other clinicians involved in diagnosis, in order to improve their decision-making skills and provide better patient care.
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ABC of Clinical Reasoning - Nicola Cooper
Preface
Excellence in medicine is not just about good knowledge, skills and behaviours. How doctors think, reason and make decisions is arguably their most critical skill. While medical schools and postgraduate training programmes teach and assess the knowledge and skills required to practise as a doctor, few offer comprehensive training in clinical reasoning or decision-making. This is important because studies suggest that diagnostic error is common and results in significant harm to patients. Diagnostic error typically has multiple causes, but two-thirds of the root causes involve human cognitive error – most commonly, when the available data are not synthesised correctly. While some of this is due to inadequate knowledge, a significant amount is due to inadequate reasoning.
Clinical reasoning has several elements, which are covered in this book, from evidence-based clinical skills to the use and interpretation of diagnostic tests to cognitive psychology, thinking about thinking and human factors. This book is designed to be an introduction for individuals and also a resource for a curriculum in clinical reasoning.
Clinical reasoning is not confined to doctors – we have written this book with advanced nurse practitioners and other clinicians in mind, and try to use the word clinician’ rather than ‘doctor’ whenever we can.
Clinical reasoning is relevant to every single specialty from general practice to surgery to the intensive care unit. While some aspects of clinical reasoning are not new, advances in cognitive psychology and a better understanding of patient safety mean there are elements of clinical reasoning that many clinicians may be unfamiliar with. We can only provide an introduction to the different elements of clinical reasoning in this book, so each chapter has a list of further reading and resources. We have also provided a list of recommended books, articles and websites at the end of the book so readers can continue to explore clinical reasoning in more depth for themselves.
We really enjoyed writing and editing this book, we hope you enjoy reading and using it!
Nicola Cooper and John Frain
January 2016
CHAPTER 1
Clinical Reasoning: An Overview
Nicola Cooper¹,² and John Frain²
¹ Derby Teaching Hospitals NHS Foundation Trust, UK
² University of Nottingham, UK
OVERVIEW
Clinical reasoning describes the thinking and decision-making processes associated with clinical practice
The core elements of clinical reasoning include: evidence-based clinical skills, use and interpretation of diagnostic tests, understanding cognitive biases, human factors, metacognition (thinking about thinking), and patient-centred evidence-based medicine
Diagnostic error is common and causes significant harm to patients. Errors in reasoning play a significant role in diagnostic error
Sound clinical reasoning is directly linked to patient safety and quality of care
Introduction
Fellow author, Pat Croskerry, argues that although there are several qualities we would look for in a good clinician, the two absolute basic requirements for someone who is going to give you the best chance of being correctly diagnosed and appropriately managed are these: someone who is both knowledgeable and a good decision-maker. At the time of writing, medical schools and postgraduate training programmes teach and assess the knowledge and skills required to practise as a doctor, but few offer a comprehensive curriculum in decision-making. This is a problem because how doctors think, reason and make decisions is arguably their most critical skill.
This book covers the core elements of clinical decision-making – or clinical reasoning. It is designed not only for individuals but also as an introductory text for a course or as part of a curriculum in clinical reasoning. Chapter 9 specifically covers teaching clinical reasoning in undergraduate and postgraduate settings. In this chapter we define clinical reasoning, explain why it is important, and provide an overview of the different elements involved.
What is clinical reasoning?
Clinical reasoning describes the thinking and decision-making processes associated with clinical practice. According to Schön, it involves the ‘naming and framing of problems’ based on a personal understanding of the patient or client’s situation. It is a clinician’s ability to make decisions, often with others, based on the available clinical information, which includes history (sometimes from multiple sources), clinical examination findings and test results – against a backdrop of clinical uncertainty. Clinical reasoning also includes choosing appropriate treatments (or no treatment at all) and decision-making with patients and/or their carers. Box 1.1 gives a definition of clinical reasoning.
Box 1.1 A definition of clinical reasoning
‘Clinical reasoning comprises the set of reasoning strategies that permit us to combine and synthesise diverse data in to one or more diagnostic hypotheses, make the complex trade-offs between the benefits and risks of tests and treatments, and formulate plans for patient management. Tasks such as generating diagnostic hypotheses, gathering and assessing clinical data, deciding on the appropriateness of diagnostic tests, assessing test results, assembling a coherent working diagnosis, and weighing the value of therapeutic approaches are a few of the components. Teaching these cognitive skills is a difficult matter even for outstanding clinician-teachers.’
From Kassirer JP and Kopelman RI. Learning clinical reasoning, 1st edn. Williams & Wilkins, 1991.
Figure 1.1 shows the different elements involved in clinical reasoning covered in this book, underpinned by a knowledge of basic and clinical sciences. Good clinical skills – in particular communication skills – are vital because the heart of the clinical reasoning process is often the patient’s history and physical examination. Another element in clinical reasoning is understanding how to use and interpret diagnostic tests, something that is surprisingly rarely taught in a systematic way. Other elements include an understanding of cognitive psychology – how the human brain works with regards to decision-making – and human factors. We are unaware of the subconscious cognitive biases and errors to which we are prone in our everyday thinking and actions. Metacognition – thinking about thinking – is a critical skill that can be both learned and nurtured. It starts with an understanding of how we think, how our thinking and decision-making can be flawed, and how to mitigate this. Finally, reasoning does not end with a diagnosis. Patient-centred evidence-based medicine and shared decision-making (explored in Chapter 8) are also elements of clinical reasoning.
Radial diagram illustrating the elements involved in clinical reasoning such as clinical skills, use and interpretation of diagnostic tests, critical thinking, and patient-centred evidence-based medicine.Figure 1.1 The elements involved in clinical reasoning, underpinned by a knowledge of basic and clinical sciences.
Clinical reasoning is a complex process that is not fully understood. It is only in recent years that doctors have begun to focus on their thinking processes, helped by advances in cognitive psychology that have given us models of decision-making that were not available before. In addition, while clinical reasoning is often conducted individually, it is often done in a team and also occurs in context – or ‘problem spaces’ as illustrated in Figure 1.2. These different contexts or points of view impact on our reasoning in ways we often do not realise.
Overlapping circles diagram illustrating the clinical reasoning in multiple problem spaces and different contexts, namely, work team, family, sociocultural, global, local workplace, and organisational.Figure 1.2 Clinical reasoning in multiple problem spaces: factors influencing clinical decision-making.
Source: Higgs J and Jones MA. Clinical decision making and multiple problem spaces. In: Higgs J, Jones MA, Loftus S, Christensen N (eds), Clinical Reasoning in the Health Professions, 3rd edn. Elsevier, 2008. Reproduced with permission of