NR 511 Differential Diagnosis and Primary
Care Questions and Answers 2026/2027 –
Complete Study Guide for Advanced Nursing
Exam Preparation
Course
NR511
1.
A 54-year-old patient presents with intermittent substernal chest pressure occurring while
walking uphill. The discomfort improves after several minutes of rest. Which diagnosis should
receive the highest priority in the differential?
A. Gastroesophageal reflux disease
B. Stable ischemic heart disease
C. Costochondritis
D. Panic disorder
Answer: B. Stable ischemic heart disease
Rationale: Exertional substernal pressure relieved by rest is characteristic of myocardial
ischemia. GERD and musculoskeletal pain can mimic chest discomfort, but the history requires
cardiovascular evaluation before assuming a benign cause.
,2.
A 27-year-old patient has sore throat, fever, tonsillar exudates, tender anterior cervical nodes, and
no cough. Which diagnostic approach is most appropriate?
A. Immediate chest radiography
B. Testing for group A streptococcal infection
C. CT scan of the neck in every case
D. Empiric treatment for pneumonia
Answer: B. Testing for group A streptococcal infection
Rationale: The presentation increases the likelihood of streptococcal pharyngitis. Appropriate
testing helps distinguish bacterial infection from viral pharyngitis and avoids unnecessary
antibiotics.
3.
A patient reports fatigue for 3 months. The clinician initially suspects hypothyroidism, but the
patient also reports heavy menstrual bleeding and exertional dyspnea. Which additional
diagnosis should be actively considered?
A. Iron-deficiency anemia
B. Otitis media
C. Migraine
D. Nephrolithiasis
Answer: A. Iron-deficiency anemia
,Rationale: Chronic blood loss from heavy menstruation is a common cause of iron deficiency.
Fatigue and exertional dyspnea support anemia. This case illustrates why clinicians should avoid
anchoring on one initial diagnosis.
4.
A diagnostic test has very high sensitivity. Which statement best describes this characteristic?
A. A negative result can help make the disease less likely
B. A positive result always confirms the disease
C. The test identifies only patients without disease
D. The test has a high false-negative rate
Answer: A. A negative result can help make the disease less likely
Rationale: Highly sensitive tests have relatively few false-negative results. Therefore, a negative
result can be particularly useful when the goal is to rule out a condition in an appropriate clinical
setting.
5.
A 62-year-old patient presents with new-onset headache accompanied by jaw pain while chewing
and transient visual blurring. What diagnosis must be urgently considered?
A. Tension headache
B. Giant cell arteritis
C. Migraine without aura
D. Sinus headache
Answer: B. Giant cell arteritis
, Rationale: New headache in an older adult accompanied by jaw claudication and visual
symptoms is concerning for giant cell arteritis. Delayed treatment can result in permanent vision
loss.
6.
A patient presents with acute right lower-quadrant abdominal pain, anorexia, nausea, and low-
grade fever. Which additional finding would strengthen suspicion for appendicitis?
A. Rebound or localized peritoneal tenderness
B. Painless jaundice
C. Bilateral ankle edema
D. Isolated epigastric burning after meals
Answer: A. Rebound or localized peritoneal tenderness
Rationale: Appendicitis commonly progresses from visceral abdominal discomfort to localized
right-lower-quadrant pain and peritoneal irritation. The overall clinical pattern is more important
than one isolated finding.
7.
A 45-year-old patient has burning epigastric discomfort that occurs several hours after meals and
improves temporarily with food. Which condition belongs high on the differential?
A. Peptic ulcer disease
B. Acute appendicitis
C. Renal colic
D. Diverticulitis
Care Questions and Answers 2026/2027 –
Complete Study Guide for Advanced Nursing
Exam Preparation
Course
NR511
1.
A 54-year-old patient presents with intermittent substernal chest pressure occurring while
walking uphill. The discomfort improves after several minutes of rest. Which diagnosis should
receive the highest priority in the differential?
A. Gastroesophageal reflux disease
B. Stable ischemic heart disease
C. Costochondritis
D. Panic disorder
Answer: B. Stable ischemic heart disease
Rationale: Exertional substernal pressure relieved by rest is characteristic of myocardial
ischemia. GERD and musculoskeletal pain can mimic chest discomfort, but the history requires
cardiovascular evaluation before assuming a benign cause.
,2.
A 27-year-old patient has sore throat, fever, tonsillar exudates, tender anterior cervical nodes, and
no cough. Which diagnostic approach is most appropriate?
A. Immediate chest radiography
B. Testing for group A streptococcal infection
C. CT scan of the neck in every case
D. Empiric treatment for pneumonia
Answer: B. Testing for group A streptococcal infection
Rationale: The presentation increases the likelihood of streptococcal pharyngitis. Appropriate
testing helps distinguish bacterial infection from viral pharyngitis and avoids unnecessary
antibiotics.
3.
A patient reports fatigue for 3 months. The clinician initially suspects hypothyroidism, but the
patient also reports heavy menstrual bleeding and exertional dyspnea. Which additional
diagnosis should be actively considered?
A. Iron-deficiency anemia
B. Otitis media
C. Migraine
D. Nephrolithiasis
Answer: A. Iron-deficiency anemia
,Rationale: Chronic blood loss from heavy menstruation is a common cause of iron deficiency.
Fatigue and exertional dyspnea support anemia. This case illustrates why clinicians should avoid
anchoring on one initial diagnosis.
4.
A diagnostic test has very high sensitivity. Which statement best describes this characteristic?
A. A negative result can help make the disease less likely
B. A positive result always confirms the disease
C. The test identifies only patients without disease
D. The test has a high false-negative rate
Answer: A. A negative result can help make the disease less likely
Rationale: Highly sensitive tests have relatively few false-negative results. Therefore, a negative
result can be particularly useful when the goal is to rule out a condition in an appropriate clinical
setting.
5.
A 62-year-old patient presents with new-onset headache accompanied by jaw pain while chewing
and transient visual blurring. What diagnosis must be urgently considered?
A. Tension headache
B. Giant cell arteritis
C. Migraine without aura
D. Sinus headache
Answer: B. Giant cell arteritis
, Rationale: New headache in an older adult accompanied by jaw claudication and visual
symptoms is concerning for giant cell arteritis. Delayed treatment can result in permanent vision
loss.
6.
A patient presents with acute right lower-quadrant abdominal pain, anorexia, nausea, and low-
grade fever. Which additional finding would strengthen suspicion for appendicitis?
A. Rebound or localized peritoneal tenderness
B. Painless jaundice
C. Bilateral ankle edema
D. Isolated epigastric burning after meals
Answer: A. Rebound or localized peritoneal tenderness
Rationale: Appendicitis commonly progresses from visceral abdominal discomfort to localized
right-lower-quadrant pain and peritoneal irritation. The overall clinical pattern is more important
than one isolated finding.
7.
A 45-year-old patient has burning epigastric discomfort that occurs several hours after meals and
improves temporarily with food. Which condition belongs high on the differential?
A. Peptic ulcer disease
B. Acute appendicitis
C. Renal colic
D. Diverticulitis
