NR 511 Midterm Differential Diagnosis
Primary Care Practicum
Comprehensive Review Examination
2026/2027 Academic Year
150 Questions | Detailed Rationales
Differential Diagnosis Framework | Clinical Decision-Making | Diagnostic Reasoning
Primary Care Presentations | Evidence-Based Practice | Patient Management
Advanced Practice Nursing Examination
,NR 511 Midterm Differential Diagnosis Exam 2026/2027 | Page 2
, Examination Instructions
This examination consists of 150 multiple-choice questions.
Each question has four answer choices (A, B, C, D).
Select the single best answer for each question.
Each question includes a detailed rationale for the correct answer.
Topics are randomly distributed throughout the examination.
Cognitive levels: 30% recall, 50% application, 20% analysis.
Q1: A 45-year-old female presents with fatigue, weight gain, cold intolerance, and constipation. Which of
the following is the most appropriate initial diagnostic test?
A. Free T4 and thyroid-stimulating hormone (TSH) [CORRECT]
B. Complete metabolic panel (CMP)
C. Complete blood count (CBC) with differential
D. Erythrocyte sedimentation rate (ESR)
Correct Answer: A
Rationale: Correct because fatigue, weight gain, cold intolerance, and constipation are classic signs of
hypothyroidism, and the initial diagnostic test of choice is free T4 and TSH. This matches the recommended
laboratory evaluation for thyroid dysfunction in primary care.
Q2: A 58-year-old male presents with substernal chest pain that began 30 minutes ago while resting. The
pain is described as a pressure sensation radiating to the left arm. He has a history of hypertension,
diabetes, and hyperlipidemia. What is the priority action?
A. Administer antacids and observe for response
B. Obtain an electrocardiogram (ECG) immediately [CORRECT]
C. Order a chest radiograph
D. Schedule a stress test for next week
Correct Answer: B
Rationale: Correct because substernal chest pressure radiating to the left arm in a patient with multiple cardiac risk
factors requires immediate ECG to evaluate for acute coronary syndrome. Priority is identifying life-threatening
conditions first in the differential diagnosis.
Q3: A 28-year-old female presents with lower right quadrant abdominal pain, nausea, and a low-grade
fever of 100.8 F. On physical examination, she has rebound tenderness at McBurney point. What is the
most likely diagnosis?
A. Ovarian cyst rupture
NR 511 Midterm Differential Diagnosis Exam 2026/2027 | Page 3
, B. Appendicitis [CORRECT]
C. Urinary tract infection
D. Pelvic inflammatory disease
Correct Answer: B
Rationale: Correct because the presentation of right lower quadrant pain, nausea, low-grade fever, and rebound
tenderness at McBurney point is classic for appendicitis. This matches the typical clinical presentation requiring
urgent surgical evaluation.
Q4: A 52-year-old female presents with a new-onset severe headache described as the worst headache of
her life, with rapid onset over seconds. She reports neck stiffness and photophobia. What is the most
appropriate next step?
A. Prescribe sumatriptan for migraine
B. Order a non-contrast head CT immediately [CORRECT]
C. Recommend over-the-counter analgesics
D. Perform lumbar puncture without imaging
Correct Answer: B
Rationale: Correct because a thunderclap headache described as the worst headache of her life with neck stiffness
and photophobia is a red flag for subarachnoid hemorrhage. Priority is obtaining emergent non-contrast head CT to
rule out this life-threatening condition.
Q5: Which of the following best describes the process of diagnostic reasoning in primary care?
A. Generating a single diagnosis based on the most prominent symptom
B. Systematically generating and testing hypotheses based on gathered data [CORRECT]
C. Ordering comprehensive laboratory panels to identify abnormalities
D. Relying exclusively on clinical guidelines for all presentations
Correct Answer: B
Rationale: Correct because diagnostic reasoning is a systematic process of generating hypotheses, gathering data, and
testing those hypotheses to arrive at the most likely diagnosis. This matches the clinical decision-making framework
used in advanced practice nursing.
Q6: A 65-year-old male presents with low back pain that began after a minor fall. He reports numbness
and tingling in both legs and difficulty with urination. Which finding is a red flag that requires immediate
imaging?
A. Pain that worsens with bending
B. Bilateral lower extremity neurological deficits and urinary dysfunction [CORRECT]
C. Morning stiffness that improves with activity
D. Tenderness over the L5-S1 area
Correct Answer: B
Rationale: Correct because bilateral neurological deficits and urinary dysfunction suggest cauda equina syndrome,
which is a surgical emergency requiring immediate imaging. This matches the red flag criteria for low back pain that
mandates urgent evaluation.
NR 511 Midterm Differential Diagnosis Exam 2026/2027 | Page 4
Primary Care Practicum
Comprehensive Review Examination
2026/2027 Academic Year
150 Questions | Detailed Rationales
Differential Diagnosis Framework | Clinical Decision-Making | Diagnostic Reasoning
Primary Care Presentations | Evidence-Based Practice | Patient Management
Advanced Practice Nursing Examination
,NR 511 Midterm Differential Diagnosis Exam 2026/2027 | Page 2
, Examination Instructions
This examination consists of 150 multiple-choice questions.
Each question has four answer choices (A, B, C, D).
Select the single best answer for each question.
Each question includes a detailed rationale for the correct answer.
Topics are randomly distributed throughout the examination.
Cognitive levels: 30% recall, 50% application, 20% analysis.
Q1: A 45-year-old female presents with fatigue, weight gain, cold intolerance, and constipation. Which of
the following is the most appropriate initial diagnostic test?
A. Free T4 and thyroid-stimulating hormone (TSH) [CORRECT]
B. Complete metabolic panel (CMP)
C. Complete blood count (CBC) with differential
D. Erythrocyte sedimentation rate (ESR)
Correct Answer: A
Rationale: Correct because fatigue, weight gain, cold intolerance, and constipation are classic signs of
hypothyroidism, and the initial diagnostic test of choice is free T4 and TSH. This matches the recommended
laboratory evaluation for thyroid dysfunction in primary care.
Q2: A 58-year-old male presents with substernal chest pain that began 30 minutes ago while resting. The
pain is described as a pressure sensation radiating to the left arm. He has a history of hypertension,
diabetes, and hyperlipidemia. What is the priority action?
A. Administer antacids and observe for response
B. Obtain an electrocardiogram (ECG) immediately [CORRECT]
C. Order a chest radiograph
D. Schedule a stress test for next week
Correct Answer: B
Rationale: Correct because substernal chest pressure radiating to the left arm in a patient with multiple cardiac risk
factors requires immediate ECG to evaluate for acute coronary syndrome. Priority is identifying life-threatening
conditions first in the differential diagnosis.
Q3: A 28-year-old female presents with lower right quadrant abdominal pain, nausea, and a low-grade
fever of 100.8 F. On physical examination, she has rebound tenderness at McBurney point. What is the
most likely diagnosis?
A. Ovarian cyst rupture
NR 511 Midterm Differential Diagnosis Exam 2026/2027 | Page 3
, B. Appendicitis [CORRECT]
C. Urinary tract infection
D. Pelvic inflammatory disease
Correct Answer: B
Rationale: Correct because the presentation of right lower quadrant pain, nausea, low-grade fever, and rebound
tenderness at McBurney point is classic for appendicitis. This matches the typical clinical presentation requiring
urgent surgical evaluation.
Q4: A 52-year-old female presents with a new-onset severe headache described as the worst headache of
her life, with rapid onset over seconds. She reports neck stiffness and photophobia. What is the most
appropriate next step?
A. Prescribe sumatriptan for migraine
B. Order a non-contrast head CT immediately [CORRECT]
C. Recommend over-the-counter analgesics
D. Perform lumbar puncture without imaging
Correct Answer: B
Rationale: Correct because a thunderclap headache described as the worst headache of her life with neck stiffness
and photophobia is a red flag for subarachnoid hemorrhage. Priority is obtaining emergent non-contrast head CT to
rule out this life-threatening condition.
Q5: Which of the following best describes the process of diagnostic reasoning in primary care?
A. Generating a single diagnosis based on the most prominent symptom
B. Systematically generating and testing hypotheses based on gathered data [CORRECT]
C. Ordering comprehensive laboratory panels to identify abnormalities
D. Relying exclusively on clinical guidelines for all presentations
Correct Answer: B
Rationale: Correct because diagnostic reasoning is a systematic process of generating hypotheses, gathering data, and
testing those hypotheses to arrive at the most likely diagnosis. This matches the clinical decision-making framework
used in advanced practice nursing.
Q6: A 65-year-old male presents with low back pain that began after a minor fall. He reports numbness
and tingling in both legs and difficulty with urination. Which finding is a red flag that requires immediate
imaging?
A. Pain that worsens with bending
B. Bilateral lower extremity neurological deficits and urinary dysfunction [CORRECT]
C. Morning stiffness that improves with activity
D. Tenderness over the L5-S1 area
Correct Answer: B
Rationale: Correct because bilateral neurological deficits and urinary dysfunction suggest cauda equina syndrome,
which is a surgical emergency requiring immediate imaging. This matches the red flag criteria for low back pain that
mandates urgent evaluation.
NR 511 Midterm Differential Diagnosis Exam 2026/2027 | Page 4
