W 9

Question 1

if the probability of disease is below the treatment threshold?

Answer 1

1. further testing needed
2. “test” zone
3. differentials are called “active alternatives”

Question 2

if the probability of disease is above the treatment threshold?

Answer 2

1. consider treatment
2. “treat” zone
3. diagnosis here is often called “working diagnosis”

Question 3

Factors for considering treatment threshold?

Answer 3

degree to which it is safe to go without the treatment
harms and accuracy of further testing
harms and benefits of treatment

Question 4

When do we have higher treatment thresholds?

Answer 4

1. the safer it is to go without treatment
2. more accurate available tests
3. more harmful the treatment

Question 5

When do we have lower treatment thresholds?

Answer 5

1. more harmful testing
2. more beneficial treatment

Question 6

When “test” zone expands? and “treatment” zone shrinks

Answer 6

1. lower harms of leaving the condition untreated
2. more favorable balance of test harm relative to information benefit
3. less favorable balance of treatment harm relative to benefit

Question 7

When “treatment” zone expands? and “test” zone shrinks

Answer 7

1. higher harms of leaving the condition untreated
2. less favorable balance of test harm to information benefit
3. more favorable balance of treatment harm to benefit

Question 8

You don’t move the finish line, after gathering evidence you only move the probability of condition NOT the threshold.
True or False

Answer 8

True