NSG 550 Exam 1 V2 | NSG 550 Diagnostic
Reasoning for Nurse Practitioners | Wilkes
University | 2026 Q&A with Rationale
(Wilkes NSG550 Exam 1 2026)
1. Which phase of the clinical reasoning process involves the generation of a list of potential
diagnoses based on the initial patient encounter?
A. Data Synthesis
B. Final Assessment Construction
C. Diagnostic Validation
D. Differential Diagnosis Generation
Answer: D
Rationale: Differential diagnosis generation is a critical early step in the clinical reasoning
process where the NP brainstorms potential causes for the patient’s symptoms. This list is
narrowed down as more data is collected through the physical exam and diagnostic testing.
It prevents premature closure by ensuring multiple possibilities are considered before a
final diagnosis is reached.
2. When a clinician relies too heavily on the first piece of information encountered during the
diagnostic process, which cognitive bias is being exhibited?
A. Confirmation Bias
,B. Anchoring Bias
C. Availability Heuristic
D. Premature Closure
Answer: B
Rationale: Anchoring bias occurs when the clinician fixates on initial information and fails
to adjust their diagnostic impressions as new data emerges. This can lead to diagnostic
errors if the initial ‘anchor’ was misleading or incomplete. Recognizing this bias is essential
for NPs to maintain objectivity during complex clinical assessments.
3. Which of the following describes the ability of a diagnostic test to correctly identify those
patients who do NOT have the disease?
A. Sensitivity
B. Specificity
C. Positive Predictive Value
D. Likelihood Ratio
Answer: B
Rationale: Specificity refers to the proportion of patients without the disease who receive
a negative test result. A test with high specificity is useful for ‘ruling in’ a disease because it
produces very few false positives. In clinical practice, specific tests are often used to
confirm a diagnosis after a sensitive screening test has been performed.
, 4. In the SOAP note format, where should the nurse practitioner document the patient’s
description of their ‘crushing’ chest pain?
A. Plan
B. Objective
C. Assessment
D. Subjective
Answer: D
Rationale: The Subjective section of the SOAP note includes information provided by the
patient, such as their symptoms, history, and feelings. Since ‘crushing chest pain’ is the
patient’s own description of their experience, it must be recorded here. This distinguishes
it from objective findings, such as physical exam results or lab data.
5. What is the primary goal of the ‘Review of Systems’ (ROS) during a comprehensive health
history?
A. To document physical exam findings for each body system.
B. To identify symptoms that the patient may have forgotten to mention in the HPI.
C. To determine the patient’s social and environmental risks.
D. To provide a list of current medications and allergies.
Answer: B
Reasoning for Nurse Practitioners | Wilkes
University | 2026 Q&A with Rationale
(Wilkes NSG550 Exam 1 2026)
1. Which phase of the clinical reasoning process involves the generation of a list of potential
diagnoses based on the initial patient encounter?
A. Data Synthesis
B. Final Assessment Construction
C. Diagnostic Validation
D. Differential Diagnosis Generation
Answer: D
Rationale: Differential diagnosis generation is a critical early step in the clinical reasoning
process where the NP brainstorms potential causes for the patient’s symptoms. This list is
narrowed down as more data is collected through the physical exam and diagnostic testing.
It prevents premature closure by ensuring multiple possibilities are considered before a
final diagnosis is reached.
2. When a clinician relies too heavily on the first piece of information encountered during the
diagnostic process, which cognitive bias is being exhibited?
A. Confirmation Bias
,B. Anchoring Bias
C. Availability Heuristic
D. Premature Closure
Answer: B
Rationale: Anchoring bias occurs when the clinician fixates on initial information and fails
to adjust their diagnostic impressions as new data emerges. This can lead to diagnostic
errors if the initial ‘anchor’ was misleading or incomplete. Recognizing this bias is essential
for NPs to maintain objectivity during complex clinical assessments.
3. Which of the following describes the ability of a diagnostic test to correctly identify those
patients who do NOT have the disease?
A. Sensitivity
B. Specificity
C. Positive Predictive Value
D. Likelihood Ratio
Answer: B
Rationale: Specificity refers to the proportion of patients without the disease who receive
a negative test result. A test with high specificity is useful for ‘ruling in’ a disease because it
produces very few false positives. In clinical practice, specific tests are often used to
confirm a diagnosis after a sensitive screening test has been performed.
, 4. In the SOAP note format, where should the nurse practitioner document the patient’s
description of their ‘crushing’ chest pain?
A. Plan
B. Objective
C. Assessment
D. Subjective
Answer: D
Rationale: The Subjective section of the SOAP note includes information provided by the
patient, such as their symptoms, history, and feelings. Since ‘crushing chest pain’ is the
patient’s own description of their experience, it must be recorded here. This distinguishes
it from objective findings, such as physical exam results or lab data.
5. What is the primary goal of the ‘Review of Systems’ (ROS) during a comprehensive health
history?
A. To document physical exam findings for each body system.
B. To identify symptoms that the patient may have forgotten to mention in the HPI.
C. To determine the patient’s social and environmental risks.
D. To provide a list of current medications and allergies.
Answer: B
