DIFFERENTIAL DIAGNOSIS TEST 1 UPDATED
QUESTIONS AND CORRECT ANSWERS
Question:
1. Diagnostic reasoning
Answer:
A dynamic thinking process leading to the identification of a hypothesis explaining clinical evidence.
Question:
2. Explicit knowledge
Answer:
Described, analyzed, and measured knowledge that can be taught.
Question:
3. Tacit knowledge
Answer:
Possessed without conscious awareness, built from clinical experiences over time.
Question:
4. built from a quantitative and qualitative clinical experiences over time and part of consciousness
Answer:
tacit knowledge
Question:
5. Probabilistic reasoning
Answer:
Based on the association between clinical data triggering potential disease presence.
Question:
6. Types of diagnostic reasoning
Answer:
probabilistic, causal and deterministic
Question:
7. A + B + C = D
Answer:
Probabilistic
Question:
8. Causal reasoning
Answer:
Based on cause-and-effect relationships between clinical data.
Question:
9. Deterministic reasoning
,Answer:
Depends on unambiguous rules and utilizes diagnostic algorithms.
Question:
10. Pattern recognition
Answer:
Simultaneous recall of disease patterns and distinguishing between manifestations.
Question:
11. maxim
Answer:
common things occur commonly
Question:
12. Occam's razor
Answer:
Refers to pattern recognition, recalling disease patterns, and distinguishing between manifestations.
Question:
13. Hickam Dictum
Answer:
Counters Occam's razor, backward reasoning where data is acquired to uphold a generated hypothesis.
Question:
14. Backward reasoning
Answer:
start with (desired) answer, work backwards towards knowns
Question:
15. pragmatic
Answer:
most practical and most responsive to treatment
Question:
16. Bayesian process
Answer:
Utilizes sensitivity and specificity to evaluate hypotheses.
Question:
17. Sensitivity
Answer:
True positive rate, used to rule out diagnosis, probability of + result
Question:
18. High sensitivity
, Answer:
confirms disease presence with few false negatives.
Question:
19. Specificity
Answer:
True negative rate, probability of - result
Question:
20. High specificity
Answer:
confirming absence of disease with few false positives.
Question:
21. Pretest probability
Answer:
Probability of a patient having the target disorder before a diagnostic test result.
Question:
22. Post test probability
Answer:
Determined by Bayes theorem, converting prevalence, sensitivity, and specificity into the probability of
disease presence.
Question:
23. Likelihood ratio
Answer:
Indicates strength of evidence for test ability to identify disease presence or absence. Strong is <0.1 and
>10
Question:
24. Ionizing radiation exposure
Answer:
Concern for X-rays and CT scans, with majority exposure in the US imaging.
Question:
25. Electromagnetic spectrum
Answer:
X-rays and gamma rays at the high-energy end, radio waves at the low-energy end.
Question:
26. American College of Radiology appropriateness criteria
Answer:
Guidelines aiding providers in ordering imaging tests.
Question:
27. Ultrasound
QUESTIONS AND CORRECT ANSWERS
Question:
1. Diagnostic reasoning
Answer:
A dynamic thinking process leading to the identification of a hypothesis explaining clinical evidence.
Question:
2. Explicit knowledge
Answer:
Described, analyzed, and measured knowledge that can be taught.
Question:
3. Tacit knowledge
Answer:
Possessed without conscious awareness, built from clinical experiences over time.
Question:
4. built from a quantitative and qualitative clinical experiences over time and part of consciousness
Answer:
tacit knowledge
Question:
5. Probabilistic reasoning
Answer:
Based on the association between clinical data triggering potential disease presence.
Question:
6. Types of diagnostic reasoning
Answer:
probabilistic, causal and deterministic
Question:
7. A + B + C = D
Answer:
Probabilistic
Question:
8. Causal reasoning
Answer:
Based on cause-and-effect relationships between clinical data.
Question:
9. Deterministic reasoning
,Answer:
Depends on unambiguous rules and utilizes diagnostic algorithms.
Question:
10. Pattern recognition
Answer:
Simultaneous recall of disease patterns and distinguishing between manifestations.
Question:
11. maxim
Answer:
common things occur commonly
Question:
12. Occam's razor
Answer:
Refers to pattern recognition, recalling disease patterns, and distinguishing between manifestations.
Question:
13. Hickam Dictum
Answer:
Counters Occam's razor, backward reasoning where data is acquired to uphold a generated hypothesis.
Question:
14. Backward reasoning
Answer:
start with (desired) answer, work backwards towards knowns
Question:
15. pragmatic
Answer:
most practical and most responsive to treatment
Question:
16. Bayesian process
Answer:
Utilizes sensitivity and specificity to evaluate hypotheses.
Question:
17. Sensitivity
Answer:
True positive rate, used to rule out diagnosis, probability of + result
Question:
18. High sensitivity
, Answer:
confirms disease presence with few false negatives.
Question:
19. Specificity
Answer:
True negative rate, probability of - result
Question:
20. High specificity
Answer:
confirming absence of disease with few false positives.
Question:
21. Pretest probability
Answer:
Probability of a patient having the target disorder before a diagnostic test result.
Question:
22. Post test probability
Answer:
Determined by Bayes theorem, converting prevalence, sensitivity, and specificity into the probability of
disease presence.
Question:
23. Likelihood ratio
Answer:
Indicates strength of evidence for test ability to identify disease presence or absence. Strong is <0.1 and
>10
Question:
24. Ionizing radiation exposure
Answer:
Concern for X-rays and CT scans, with majority exposure in the US imaging.
Question:
25. Electromagnetic spectrum
Answer:
X-rays and gamma rays at the high-energy end, radio waves at the low-energy end.
Question:
26. American College of Radiology appropriateness criteria
Answer:
Guidelines aiding providers in ordering imaging tests.
Question:
27. Ultrasound