NR511: Differential Diagnosis & Primary Care Practicum
Week 4 Midterm Exam – 150 Verified Questions & Answers (2026/2027 Update)
SECTION 1: DIAGNOSTIC REASONING & CLINICAL METHODOLOGY
1. Define diagnostic reasoning.
A) Memorizing common disease presentations
B) Following a fixed algorithm for every patient
C) Reflective thinking that involves questioning one's thinking to determine if all
possible avenues have been explored and if conclusions are based on evidence
D) Documenting patient symptoms in chronological order
Correct Answer: C. Reflective thinking that involves questioning one's thinking to
determine if all possible avenues have been explored and if conclusions are
based on evidence. Rationale: Diagnostic reasoning is a form of critical thinking
that involves continuously questioning your own thought process to ensure all
possibilities have been considered and that your conclusions are supported by
evidence, not assumptions .
2. What is the purpose of a differential diagnosis?
A) Confirm a single diagnosis immediately
B) Systematically consider all possible conditions that could explain the patient's
presentation
C) Select the most expensive diagnostic test
D) Document the patient's history only
Correct Answer: B. Systematically consider all possible conditions that could
explain the patient's presentation. Rationale: Differential diagnosis is a
systematic method of identifying all potential conditions that could account for a
patient's symptoms and signs. It ensures important diagnoses are not missed and
guides appropriate testing .
,3. Which of the following best describes diagnostic reasoning?
A) Memorizing disease symptoms
B) Reflective thinking that involves questioning one's thinking to determine if all
possible avenues have been explored
C) Following a fixed algorithm
D) Relying solely on laboratory results
Correct Answer: B. Reflective thinking that involves questioning one's thinking to
determine if all possible avenues have been explored. Rationale: Diagnostic
reasoning is a form of critical thinking that involves reflective analysis of the
clinical situation, questioning assumptions, and considering multiple hypotheses
before reaching a conclusion .
4. In the clinical reasoning process, subjective data refers to:
A) Laboratory values
B) Physical examination findings
C) Anything the patient tells you or complains of regarding their symptoms
D) Diagnostic imaging results
Correct Answer: C. Anything the patient tells you or complains of regarding their
symptoms. Rationale: Subjective data includes the patient's history of present
illness, chief complaint, and review of symptoms. It represents what the patient
reports and forms the foundation of the clinical encounter .
5. In the clinical reasoning process, objective data refers to:
A) The patient's description of pain
B) Family history
C) Anything YOU can see, touch, or measure during the examination
D) The patient's concerns
,Correct Answer: C. Anything YOU can see, touch, or measure during the
examination. Rationale: Objective data is measurable, observable, and verifiable
information gathered through physical examination, vital signs measurement, and
diagnostic testing .
6. What is the likelihood ratio in diagnostic testing?
A) The probability of disease before testing
B) How likely it is that a patient has the disease based on test results
C) The sensitivity of a test
D) The specificity of a test
Correct Answer: B. How likely it is that a patient has the disease based on test
results. Rationale: Likelihood ratios indicate how much a test result changes the
probability that a patient has a disease. A higher positive likelihood ratio (>10)
strongly suggests disease presence, while a low negative likelihood ratio (<0.1)
helps rule out disease .
7. What does the "N" in SNAPPS represent?
A) Narrative of subjective complaints
B) Narrow the differential diagnosis to 2 or 3 possibilities
C) Note all normal physical exam findings
D) Negotiate a treatment plan with the preceptor
Correct Answer: B. Narrow the differential diagnosis to 2 or 3 possibilities.
Rationale: In SNAPPS, N stands for Narrowing the differential diagnosis to 2–3 key
possibilities based on evidence .
8. What does the "A" in SNAPPS stand for?
A) Assessment
B) Analyze
, C) Apply
D) Assess
Correct Answer: B. Analyze. Rationale: In SNAPPS, the "A" stands for "Analyze"
(analyze the differential), not "Assessment" .
9. The A in SNAPPS stands for Assessment.
A) True
B) False
Correct Answer: B. False. Rationale: In SNAPPS, the "A" stands for "Analyze"
(analyze the differential), not "Assessment" .
10. What is the first step in the SNAPPS model?
A) Narrow the differential
B) Summarize the case
C) Analyze the differential
D) Plan management
Correct Answer: B. Summarize the case. Rationale: The SNAPPS model begins
with "Summarize" – presenting a concise summary of the patient's history and
findings. This is followed by narrowing the differential, analyzing, probing,
planning, and self-directed learning .
11. What is the final step in the SNAPPS model?
A) Summarize
B) Plan
C) Self-directed learning
D) Probe
Week 4 Midterm Exam – 150 Verified Questions & Answers (2026/2027 Update)
SECTION 1: DIAGNOSTIC REASONING & CLINICAL METHODOLOGY
1. Define diagnostic reasoning.
A) Memorizing common disease presentations
B) Following a fixed algorithm for every patient
C) Reflective thinking that involves questioning one's thinking to determine if all
possible avenues have been explored and if conclusions are based on evidence
D) Documenting patient symptoms in chronological order
Correct Answer: C. Reflective thinking that involves questioning one's thinking to
determine if all possible avenues have been explored and if conclusions are
based on evidence. Rationale: Diagnostic reasoning is a form of critical thinking
that involves continuously questioning your own thought process to ensure all
possibilities have been considered and that your conclusions are supported by
evidence, not assumptions .
2. What is the purpose of a differential diagnosis?
A) Confirm a single diagnosis immediately
B) Systematically consider all possible conditions that could explain the patient's
presentation
C) Select the most expensive diagnostic test
D) Document the patient's history only
Correct Answer: B. Systematically consider all possible conditions that could
explain the patient's presentation. Rationale: Differential diagnosis is a
systematic method of identifying all potential conditions that could account for a
patient's symptoms and signs. It ensures important diagnoses are not missed and
guides appropriate testing .
,3. Which of the following best describes diagnostic reasoning?
A) Memorizing disease symptoms
B) Reflective thinking that involves questioning one's thinking to determine if all
possible avenues have been explored
C) Following a fixed algorithm
D) Relying solely on laboratory results
Correct Answer: B. Reflective thinking that involves questioning one's thinking to
determine if all possible avenues have been explored. Rationale: Diagnostic
reasoning is a form of critical thinking that involves reflective analysis of the
clinical situation, questioning assumptions, and considering multiple hypotheses
before reaching a conclusion .
4. In the clinical reasoning process, subjective data refers to:
A) Laboratory values
B) Physical examination findings
C) Anything the patient tells you or complains of regarding their symptoms
D) Diagnostic imaging results
Correct Answer: C. Anything the patient tells you or complains of regarding their
symptoms. Rationale: Subjective data includes the patient's history of present
illness, chief complaint, and review of symptoms. It represents what the patient
reports and forms the foundation of the clinical encounter .
5. In the clinical reasoning process, objective data refers to:
A) The patient's description of pain
B) Family history
C) Anything YOU can see, touch, or measure during the examination
D) The patient's concerns
,Correct Answer: C. Anything YOU can see, touch, or measure during the
examination. Rationale: Objective data is measurable, observable, and verifiable
information gathered through physical examination, vital signs measurement, and
diagnostic testing .
6. What is the likelihood ratio in diagnostic testing?
A) The probability of disease before testing
B) How likely it is that a patient has the disease based on test results
C) The sensitivity of a test
D) The specificity of a test
Correct Answer: B. How likely it is that a patient has the disease based on test
results. Rationale: Likelihood ratios indicate how much a test result changes the
probability that a patient has a disease. A higher positive likelihood ratio (>10)
strongly suggests disease presence, while a low negative likelihood ratio (<0.1)
helps rule out disease .
7. What does the "N" in SNAPPS represent?
A) Narrative of subjective complaints
B) Narrow the differential diagnosis to 2 or 3 possibilities
C) Note all normal physical exam findings
D) Negotiate a treatment plan with the preceptor
Correct Answer: B. Narrow the differential diagnosis to 2 or 3 possibilities.
Rationale: In SNAPPS, N stands for Narrowing the differential diagnosis to 2–3 key
possibilities based on evidence .
8. What does the "A" in SNAPPS stand for?
A) Assessment
B) Analyze
, C) Apply
D) Assess
Correct Answer: B. Analyze. Rationale: In SNAPPS, the "A" stands for "Analyze"
(analyze the differential), not "Assessment" .
9. The A in SNAPPS stands for Assessment.
A) True
B) False
Correct Answer: B. False. Rationale: In SNAPPS, the "A" stands for "Analyze"
(analyze the differential), not "Assessment" .
10. What is the first step in the SNAPPS model?
A) Narrow the differential
B) Summarize the case
C) Analyze the differential
D) Plan management
Correct Answer: B. Summarize the case. Rationale: The SNAPPS model begins
with "Summarize" – presenting a concise summary of the patient's history and
findings. This is followed by narrowing the differential, analyzing, probing,
planning, and self-directed learning .
11. What is the final step in the SNAPPS model?
A) Summarize
B) Plan
C) Self-directed learning
D) Probe
