Illness Scripts and Flaws in Clin Med DSA Flashcards

1
Q

What is an illness script?

A

mental cue cards used to represent individual diseases

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2
Q

Why are illness scripts important?

A

enable pattern recognition

inform hx taking based on patterns identified

enhance the integration of new knowledge w/ prior knowledge

improve diagnostic efficiency and accuracy

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3
Q

How does an expert’s illness script differ from a novice’s?

A

novice = detailed biomedical knowledge

expert = clinical features; weigh biomedical stuff w/ pt presentation

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4
Q

What is the basic organization of an illness script?

A

epidemiology: who gets it?

temporal course: how does the dz present w/ respect to time?

pathophysiology: what are the biomedical causes of this dz?

clinical presentation

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5
Q

What should be included in your minset of an expected clinical presentation?

A

key and differentiating features

must include rejecting features

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6
Q

What is an anchoring bias and how do you prevent it?

A

sticking with a diagnosis even if its not really working

corrective strategy: examine the impact of nonresponse or new info on the original diagnosis

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7
Q

What is availability bias and how do you correct it?

A

referring to what comes to mind most easily, often based on a previous pt with similar sx

corrective strategy: know baseline prevalence and stat likelihoods of the condition diagnosed

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8
Q

What is confirmation bias and how do you correct it?

A

assigning preference to findings that confirm a diagnosis or strategy

corrective strategy: use an objective source (diagnosis checklist, etc) to evaluate whether the diagnosis correlates w/ technical findings

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9
Q

What is framing bias and how do you correct it?

A

assembling elements that support a diagnosis (assuming sx are malarial in someone who was just in africa)

corrective strategy: elicit different perspectives by broadening the hx to search for other causes or associations

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10
Q

What is premature closure bias?

A

failing to seek additional info after reaching a diagnostic conclusion

corrective strategy: review the case, seek other opinions, and consult objective resources

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11
Q

What is the bias of groupthink?

A

agreement is reached based on an authoritative source (lab and imaging test results) w/out sufficient examination

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