Anatomy of a decision
How clinicians actually reach a diagnosis under uncertainty.
This chapter takes a diagnostic decision apart, looking at risk appetite, the cost of being wrong and the shifting mental load a clinician carries. Doctors make far more decisions a day than they realise, with one paediatric count passing 150, and most go unremembered. Risk reads differently from the two sides of the consultation, a point made with a survey on side-effect leaflets and the nocebo effect. The authors separate wrong diagnoses that still lead to the right treatment from genuinely harmful errors, and weigh hedged labels like non-cardiac chest pain. Contrasting fast and slow thinking, they argue the best diagnosticians behave like forecasters who update rather than defend one fixed answer.
Three takeaways
- Low-stakes decisions go unremembered, which hides creeping decision fatigue
- A wrong label can still lead to the right treatment
- Good diagnosticians update their view and accept looking wrong
Reflection
Questions for this chapter
Prompts to consider on your own, in a journal club or in a teaching session. All questions are optional, so you can read them without submitting anything. If you choose to submit answers, they are collected through Google Forms.