DO Diagnostic Reasoning and Evidence-Based Medicine 2

Question 1

Which approach to clinical decision-making integrates the best available research evidence with clinical expertise and patient values?

Accepted Answer

Evidence-based medicine (EBM)

Answer

EBM as defined by Sackett integrates best research evidence, clinical expertise, and patient preferences and values into clinical decision-making.

Question 2

The positive predictive value (PPV) of a test increases as:

Accepted Answer

Disease prevalence in the tested population increases

Answer

PPV (probability a positive test is truly positive) rises when the disease is more prevalent in the population being tested, because there are more true positives relative to false positives.

Question 3

A systematic review that mathematically pools data from multiple RCTs to increase statistical power is called a:

Accepted Answer

Meta-analysis

Answer

Meta-analysis combines quantitative data from multiple studies using statistical methods to derive more precise pooled estimates of treatment effects.

Question 4

Anchoring bias in clinical decision-making occurs when a physician:

Accepted Answer

Relies too heavily on the first piece of clinical information and fails to adjust sufficiently

Answer

Anchoring bias causes physicians to remain fixed on an initial impression even when subsequent information suggests a different diagnosis.

Question 5

In a clinical study, internal validity refers to:

Accepted Answer

Whether the study results accurately reflect the true effect in the study population

Answer

Internal validity reflects how well the study design eliminates bias and confounding to establish that the observed association is real within the study population.

DO - Doctor of Osteopathy Practice Test

DO - Doctor of Osteopathy Practice Test

DO Diagnostic Reasoning and Evidence-Based Medicine 2