,NR 511 Differential Diagnosis and Primary Care
Exam Prep — Comprehensive Review + Practice
MCQs — Chamberlain College of Nursing
2025/2026
1. A 54-year-old male presents with a 2-day history of productive cough, fever, and pleuritic chest pain. The NP
should FIRST prioritize which diagnostic consideration?
A. Acute bronchitis
B. Community-acquired pneumonia
C. Asthma exacerbation
D. Gastroesophageal reflux disease
Correct Answer: B. Community-acquired pneumonia
Rationale: Fever, productive cough, and pleuritic chest pain strongly suggest pneumonia. While acute
bronchitis can present with cough, fever and pleuritic pain are more concerning for parenchymal lung
infection. The diagnostic reasoning priority is to identify potentially serious conditions first. Diagnostic
reasoning involves systematically evaluating data to support or refute hypotheses .
2. Which statement best defines diagnostic reasoning?
A. The process of ordering the most comprehensive laboratory panel available
B. A systematic way of thinking that evaluates each new piece of data as it supports or reduces the likelihood
of diagnostic hypotheses
C. The immediate formation of a single diagnosis based on pattern recognition
D. A billing and coding framework for documenting clinical encounters
,Correct Answer: B. A systematic way of thinking that evaluates each new piece of data as it supports or
reduces the likelihood of diagnostic hypotheses
Rationale: Diagnostic reasoning is a critical thinking process involving systematic evaluation of data to support
or refute diagnostic hypotheses . It is not simply pattern recognition or comprehensive testing without
direction.
3. During a clinical encounter, a patient reports headache, dizziness, and nausea. These findings are classified
as:
A. Objective data
B. Subjective data
C. Laboratory data
D. Diagnostic imaging results
Correct Answer: B. Subjective data
Rationale: Subjective data are information reported by the patient, including symptoms and complaints.
Objective data are findings observed or measured by the clinician. This distinction is fundamental to clinical
documentation .
4. The OLDCARTS mnemonic is used to organize which component of the clinical encounter?
A. Review of systems
B. Physical examination findings
C. History of present illness
D. Past medical history
Correct Answer: C. History of present illness
, Rationale: OLDCARTS (Onset, Location, Duration, Characteristics, Aggravating factors, Relieving factors,
Treatments, Severity) provides a structured approach to the history of present illness .
5. A 62-year-old presents with fatigue and weight loss. Which strategy is MOST appropriate for initial
diagnostic reasoning?
A. Order a full-body CT scan immediately
B. Begin with a focused history and physical examination to generate hypotheses
C. Prescribe broad-spectrum antibiotics empirically
D. Refer to oncology without evaluation
Correct Answer: B. Begin with a focused history and physical examination to generate hypotheses
Rationale: Diagnostic reasoning should begin with targeted data collection guided by the patient's
presentation. Broad testing without a focused differential can generate false-positive results and unnecessary
interventions .
6. When constructing a differential diagnosis for chest pain, which condition should be considered FIRST?
A. Costochondritis
B. Gastroesophageal reflux disease
C. Myocardial infarction
D. Anxiety
Correct Answer: C. Myocardial infarction
Exam Prep — Comprehensive Review + Practice
MCQs — Chamberlain College of Nursing
2025/2026
1. A 54-year-old male presents with a 2-day history of productive cough, fever, and pleuritic chest pain. The NP
should FIRST prioritize which diagnostic consideration?
A. Acute bronchitis
B. Community-acquired pneumonia
C. Asthma exacerbation
D. Gastroesophageal reflux disease
Correct Answer: B. Community-acquired pneumonia
Rationale: Fever, productive cough, and pleuritic chest pain strongly suggest pneumonia. While acute
bronchitis can present with cough, fever and pleuritic pain are more concerning for parenchymal lung
infection. The diagnostic reasoning priority is to identify potentially serious conditions first. Diagnostic
reasoning involves systematically evaluating data to support or refute hypotheses .
2. Which statement best defines diagnostic reasoning?
A. The process of ordering the most comprehensive laboratory panel available
B. A systematic way of thinking that evaluates each new piece of data as it supports or reduces the likelihood
of diagnostic hypotheses
C. The immediate formation of a single diagnosis based on pattern recognition
D. A billing and coding framework for documenting clinical encounters
,Correct Answer: B. A systematic way of thinking that evaluates each new piece of data as it supports or
reduces the likelihood of diagnostic hypotheses
Rationale: Diagnostic reasoning is a critical thinking process involving systematic evaluation of data to support
or refute diagnostic hypotheses . It is not simply pattern recognition or comprehensive testing without
direction.
3. During a clinical encounter, a patient reports headache, dizziness, and nausea. These findings are classified
as:
A. Objective data
B. Subjective data
C. Laboratory data
D. Diagnostic imaging results
Correct Answer: B. Subjective data
Rationale: Subjective data are information reported by the patient, including symptoms and complaints.
Objective data are findings observed or measured by the clinician. This distinction is fundamental to clinical
documentation .
4. The OLDCARTS mnemonic is used to organize which component of the clinical encounter?
A. Review of systems
B. Physical examination findings
C. History of present illness
D. Past medical history
Correct Answer: C. History of present illness
, Rationale: OLDCARTS (Onset, Location, Duration, Characteristics, Aggravating factors, Relieving factors,
Treatments, Severity) provides a structured approach to the history of present illness .
5. A 62-year-old presents with fatigue and weight loss. Which strategy is MOST appropriate for initial
diagnostic reasoning?
A. Order a full-body CT scan immediately
B. Begin with a focused history and physical examination to generate hypotheses
C. Prescribe broad-spectrum antibiotics empirically
D. Refer to oncology without evaluation
Correct Answer: B. Begin with a focused history and physical examination to generate hypotheses
Rationale: Diagnostic reasoning should begin with targeted data collection guided by the patient's
presentation. Broad testing without a focused differential can generate false-positive results and unnecessary
interventions .
6. When constructing a differential diagnosis for chest pain, which condition should be considered FIRST?
A. Costochondritis
B. Gastroesophageal reflux disease
C. Myocardial infarction
D. Anxiety
Correct Answer: C. Myocardial infarction
