Advanced Assessment: Interpreting Findings and Formulating
Differential Diagnoses (6th Edition)
Practice Examination 2026/2027
Instructions: This exam consists of multiple-choice questions. Each question is followed by four answer
choices. Select the best answer for each question. Answer keys with detailed rationales are provided at
the end of the exam.
Total Questions: 50
Section I: The Art of Assessment and Clinical Decision Making
Chapter 1: Clinical Decision Making: Assessment and Differential Diagnosis
An advanced practice nurse is evaluating an adult patient with an atypical presentation of abdominal
discomfort. The clinician compares the diagnostic accuracy of hypothesis-driven reasoning with that of
intuitive pattern recognition. Which characteristic distinguishes hypothesis-driven reasoning from
pattern recognition in this clinical scenario?
A. Hypothesis-driven reasoning relies primarily on non-conscious mental shortcuts acquired through
extensive clinical experience.
B. Hypothesis-driven reasoning generates diagnostic possibilities by systematically testing clinical
concepts against gathered data.
C. Hypothesis-driven reasoning eliminates the need for gathering a formal history of present illness.
,D. Hypothesis-driven reasoning guarantees complete elimination of cognitive biases during diagnostic
synthesis.
When revising a differential diagnosis list for a patient suspected of having an autoimmune condition,
the clinician evaluates test performance characteristics. How does a diagnostic test with a high positive
likelihood ratio (LR+ > 10) differ from a test with a low negative likelihood ratio (LR- < 0.1) in refining
pretest probability?
A. A high positive likelihood ratio decreases post-test probability, whereas a low negative likelihood ratio
increases post-test probability.
B. A high positive likelihood ratio significantly raises post-test probability to rule in a condition, whereas
a low negative likelihood ratio significantly lowers post-test probability to rule out a condition.
C. A high positive likelihood ratio is used exclusively for population screening, whereas a low negative
likelihood ratio is used only for confirmatory testing.
D. A high positive likelihood ratio measures test sensitivity, whereas a low negative likelihood ratio
measures test specificity.
Which type of clinical decision-making is most reliable?
A. Intuitive
B. Analytical
C. Experiential
D. Augenblick
Essential parts of a health history include all of the following EXCEPT:
A. Chief complaint
B. Current vital signs
C. History of the present illness
, D. Review of systems
If a diagnostic study has high sensitivity, this indicates:
A. A high percentage of persons with the given condition will have an abnormal result
B. A high percentage of persons without the condition will have inconclusive results
C. A low likelihood of normal result in persons without a given condition
D. A low percentage of persons with the given condition will have an abnormal result
Chapter 2: Diagnostic Studies
A likelihood ratio above 1 indicates that a diagnostic test showing a:
A. Positive result is strongly associated with the disease
B. Negative result is strongly associated with absence of the disease
C. Positive result is weakly associated with the disease
D. Negative result is weakly associated with absence of the disease
If a diagnostic study has high specificity, this indicates:
A. A low percentage of healthy individuals will show a normal result
B. A high percentage of healthy individuals will show a normal result
C. A high percentage of individuals with a disorder will show a normal result
D. A low percentage of individuals with a disorder will show an abnormal result
Differential Diagnoses (6th Edition)
Practice Examination 2026/2027
Instructions: This exam consists of multiple-choice questions. Each question is followed by four answer
choices. Select the best answer for each question. Answer keys with detailed rationales are provided at
the end of the exam.
Total Questions: 50
Section I: The Art of Assessment and Clinical Decision Making
Chapter 1: Clinical Decision Making: Assessment and Differential Diagnosis
An advanced practice nurse is evaluating an adult patient with an atypical presentation of abdominal
discomfort. The clinician compares the diagnostic accuracy of hypothesis-driven reasoning with that of
intuitive pattern recognition. Which characteristic distinguishes hypothesis-driven reasoning from
pattern recognition in this clinical scenario?
A. Hypothesis-driven reasoning relies primarily on non-conscious mental shortcuts acquired through
extensive clinical experience.
B. Hypothesis-driven reasoning generates diagnostic possibilities by systematically testing clinical
concepts against gathered data.
C. Hypothesis-driven reasoning eliminates the need for gathering a formal history of present illness.
,D. Hypothesis-driven reasoning guarantees complete elimination of cognitive biases during diagnostic
synthesis.
When revising a differential diagnosis list for a patient suspected of having an autoimmune condition,
the clinician evaluates test performance characteristics. How does a diagnostic test with a high positive
likelihood ratio (LR+ > 10) differ from a test with a low negative likelihood ratio (LR- < 0.1) in refining
pretest probability?
A. A high positive likelihood ratio decreases post-test probability, whereas a low negative likelihood ratio
increases post-test probability.
B. A high positive likelihood ratio significantly raises post-test probability to rule in a condition, whereas
a low negative likelihood ratio significantly lowers post-test probability to rule out a condition.
C. A high positive likelihood ratio is used exclusively for population screening, whereas a low negative
likelihood ratio is used only for confirmatory testing.
D. A high positive likelihood ratio measures test sensitivity, whereas a low negative likelihood ratio
measures test specificity.
Which type of clinical decision-making is most reliable?
A. Intuitive
B. Analytical
C. Experiential
D. Augenblick
Essential parts of a health history include all of the following EXCEPT:
A. Chief complaint
B. Current vital signs
C. History of the present illness
, D. Review of systems
If a diagnostic study has high sensitivity, this indicates:
A. A high percentage of persons with the given condition will have an abnormal result
B. A high percentage of persons without the condition will have inconclusive results
C. A low likelihood of normal result in persons without a given condition
D. A low percentage of persons with the given condition will have an abnormal result
Chapter 2: Diagnostic Studies
A likelihood ratio above 1 indicates that a diagnostic test showing a:
A. Positive result is strongly associated with the disease
B. Negative result is strongly associated with absence of the disease
C. Positive result is weakly associated with the disease
D. Negative result is weakly associated with absence of the disease
If a diagnostic study has high specificity, this indicates:
A. A low percentage of healthy individuals will show a normal result
B. A high percentage of healthy individuals will show a normal result
C. A high percentage of individuals with a disorder will show a normal result
D. A low percentage of individuals with a disorder will show an abnormal result
