NR511 Week 4 Midterm Examination Differential Diagnosis And
Primary Care Practicum: Clinical Reasoning, Diagnostic
Decision-Making, and Evidence-Based Management Across the
Lifespan for Advanced Nursing Practice
Section A: Foundations of Diagnostic Reasoning (Questions 1-30)
1. A 45-year-old male presents with chest pain. Using the diagnostic reasoning
process, which of the following represents the FIRST step in developing a
differential diagnosis?
A. Order diagnostic tests to confirm the diagnosis
B. Generate a list of possible diagnoses based on the chief complaint
C. Prescribe treatment for the most likely diagnosis
D. Refer the patient to a cardiologist
Correct Answer: B
Rationale: The first step in diagnostic reasoning is to generate a differential
diagnosis—a list of possible diagnoses based on the chief complaint, history, and
physical examination findings. This list guides further history-taking, physical
examination, and diagnostic testing.
,2. A 60-year-old female presents with fatigue and weight gain. Which of the
following represents the MOST appropriate initial approach to diagnostic
reasoning?
A. Order a complete blood count and comprehensive metabolic panel
B. Begin with a focused history and physical examination
C. Start levothyroxine empirically
D. Refer to endocrinology for evaluation
Correct Answer: B
Rationale: The diagnostic process should always begin with a thorough history
and physical examination to gather clinical data and generate a differential
diagnosis. Empiric treatment or extensive testing without clinical assessment can
lead to unnecessary costs and potential harm.
3. A 28-year-old female presents with acute-onset right lower quadrant pain.
Which of the following is the MOST important component of the history to
distinguish between appendicitis and other causes of abdominal pain?
,A. Dietary history
B. Menstrual history
C. Family history of gastrointestinal disease
D. Social history including alcohol use
Correct Answer: B
Rationale: In a female of childbearing age with right lower quadrant pain,
menstrual history is crucial to differentiate appendicitis from gynecologic
conditions such as ovarian cyst, ectopic pregnancy, or pelvic inflammatory
disease. This highlights the importance of a comprehensive history.
4. A 55-year-old male with a 30-pack-year smoking history presents with a
chronic cough. Which element of the history is MOST critical in assessing the risk
of malignancy?
A. Duration of cough
B. Sputum production and color
, C. Smoking history and pack-years
D. Presence of fever
Correct Answer: C
Rationale: Smoking history, quantified in pack-years, is the most critical risk factor
for lung cancer. A 30-pack-year history significantly elevates the risk, warranting a
high index of suspicion and appropriate diagnostic evaluation.
5. A 72-year-old female presents with progressive shortness of breath and ankle
edema. The nurse practitioner recognizes that the MOST likely diagnosis is:
A. Chronic obstructive pulmonary disease
B. Heart failure
Primary Care Practicum: Clinical Reasoning, Diagnostic
Decision-Making, and Evidence-Based Management Across the
Lifespan for Advanced Nursing Practice
Section A: Foundations of Diagnostic Reasoning (Questions 1-30)
1. A 45-year-old male presents with chest pain. Using the diagnostic reasoning
process, which of the following represents the FIRST step in developing a
differential diagnosis?
A. Order diagnostic tests to confirm the diagnosis
B. Generate a list of possible diagnoses based on the chief complaint
C. Prescribe treatment for the most likely diagnosis
D. Refer the patient to a cardiologist
Correct Answer: B
Rationale: The first step in diagnostic reasoning is to generate a differential
diagnosis—a list of possible diagnoses based on the chief complaint, history, and
physical examination findings. This list guides further history-taking, physical
examination, and diagnostic testing.
,2. A 60-year-old female presents with fatigue and weight gain. Which of the
following represents the MOST appropriate initial approach to diagnostic
reasoning?
A. Order a complete blood count and comprehensive metabolic panel
B. Begin with a focused history and physical examination
C. Start levothyroxine empirically
D. Refer to endocrinology for evaluation
Correct Answer: B
Rationale: The diagnostic process should always begin with a thorough history
and physical examination to gather clinical data and generate a differential
diagnosis. Empiric treatment or extensive testing without clinical assessment can
lead to unnecessary costs and potential harm.
3. A 28-year-old female presents with acute-onset right lower quadrant pain.
Which of the following is the MOST important component of the history to
distinguish between appendicitis and other causes of abdominal pain?
,A. Dietary history
B. Menstrual history
C. Family history of gastrointestinal disease
D. Social history including alcohol use
Correct Answer: B
Rationale: In a female of childbearing age with right lower quadrant pain,
menstrual history is crucial to differentiate appendicitis from gynecologic
conditions such as ovarian cyst, ectopic pregnancy, or pelvic inflammatory
disease. This highlights the importance of a comprehensive history.
4. A 55-year-old male with a 30-pack-year smoking history presents with a
chronic cough. Which element of the history is MOST critical in assessing the risk
of malignancy?
A. Duration of cough
B. Sputum production and color
, C. Smoking history and pack-years
D. Presence of fever
Correct Answer: C
Rationale: Smoking history, quantified in pack-years, is the most critical risk factor
for lung cancer. A 30-pack-year history significantly elevates the risk, warranting a
high index of suspicion and appropriate diagnostic evaluation.
5. A 72-year-old female presents with progressive shortness of breath and ankle
edema. The nurse practitioner recognizes that the MOST likely diagnosis is:
A. Chronic obstructive pulmonary disease
B. Heart failure
