NR 511 Midterm Exam 2026 | Differential
Diagnosis & Primary Care Practicum
Questions, Answers & Rationales |
Chamberlain Nursing Exam Prep
NR 511 MIDTERM EXAM 2026 | DIFFERENTIAL DIAGNOSIS & PRIMARY CARE
PRACTICUM
Questions, Answers & Rationales | Chamberlain Nursing Exam Prep
DOCUMENT OVERVIEW
• This comprehensive exam prep material contains evidence-based multiple-choice
questions designed to strengthen your diagnostic reasoning and clinical decision-
making skills for primary care practice.
• Study strategically by working through questions in topic blocks, reviewing
rationales carefully, and identifying knowledge gaps to focus your review efforts
before the midterm examination.
Question 1: A 45-year-old woman presents with a 2-week history of
progressive dyspnea, chest pain with deep inspiration, and a dry cough.
Physical examination reveals decreased breath sounds bilaterally and
dullness to percussion at the right base. Which is the most likely diagnosis?
A) Acute bronchitis
B) Pneumonia
C) Pleural effusion
D) Acute exacerbation of asthma
E) Spontaneous pneumothorax
CORRECT ANSWER: C) Pleural effusion
,RATIONALE: Pleural effusion presents with the classic triad of dyspnea, pleuritic
chest pain, and a dry cough. The physical examination findings of decreased breath
sounds and dullness to percussion at the base of the lung are pathognomonic for
pleural effusion. The 2-week progressive history supports a subacute presentation.
While pneumonia could present similarly, the lack of productive cough and
systemic symptoms makes pleural effusion more likely. Acute bronchitis and
asthma exacerbation would present with wheezing rather than decreased breath
sounds. Pneumothorax would present with hyperresonance, not dullness.
Question 2: A 28-year-old male presents with acute onset of severe testicular
pain and swelling. On examination, the affected testis is elevated and tender.
The cremasteric reflex is present. What is your primary differential diagnosis?
A) Testicular torsion
B) Epididymitis
C) Orchitis
D) Inguinal hernia
E) Trauma-related hematocele
CORRECT ANSWER: B) Epididymitis
RATIONALE: The presence of the cremasteric reflex is a crucial clinical finding that
essentially rules out testicular torsion. Testicular torsion presents with acute severe
pain and an absent cremasteric reflex—this is the most sensitive and specific
clinical finding for torsion. Epididymitis presents with testicular pain, swelling, and
tenderness but maintains the cremasteric reflex. The normal reflex response
indicates the cord structures are not twisted. Orchitis and epididymitis often occur
together; however, epididymitis is the initial inflammation. Inguinal hernia and
hematocele would present with different physical examination findings.
Question 3: A 52-year-old man with a 15-year history of type 2 diabetes
mellitus presents with complaints of blurred vision, floaters, and occasional
,flashing lights. He reports these symptoms started one week ago. His HbA1c is
8.9%. What is your primary concern?
A) Diabetic cataracts
B) Diabetic retinopathy with possible vitreous hemorrhage or retinal detachment
C) Acute angle-closure glaucoma
D) Dry eye syndrome
E) Presbyopia
CORRECT ANSWER: B) Diabetic retinopathy with possible vitreous hemorrhage
or retinal detachment
RATIONALE: The combination of blurred vision, floaters, and flashing lights
(photopsia) in a patient with poorly controlled diabetes (HbA1c 8.9%) and a long
duration of disease is highly suggestive of progressive diabetic retinopathy. Floaters
suggest vitreous involvement, and flashing lights indicate retinal traction or
detachment risk. These are vision-threatening emergencies requiring urgent
ophthalmologic evaluation. Diabetic cataracts develop more gradually and present
with progressive painless vision loss. Acute angle-closure glaucoma presents with
severe eye pain, halos, and mid-dilated pupil. Dry eye and presbyopia do not
explain the acute floaters and photopsia. This patient requires immediate referral
to ophthalmology.
Question 4: A 34-year-old woman with no significant past medical history
presents with a 3-month history of progressive fatigue, dyspnea on exertion,
and palpitations. Laboratory workup shows: Hemoglobin 8.2 g/dL, MCV 62 fL,
ferritin 12 ng/mL, and iron saturation 15%. Which is the most likely diagnosis?
A) Vitamin B12 deficiency anemia
B) Folate deficiency anemia
C) Iron deficiency anemia
D) Anemia of chronic disease
, E) Aplastic anemia
CORRECT ANSWER: C) Iron deficiency anemia
RATIONALE: The laboratory findings are diagnostic for iron deficiency anemia: low
hemoglobin, microcytic anemia (low MCV), low ferritin, and reduced iron saturation.
Iron deficiency anemia is the most common cause of anemia worldwide. The 3-
month progressive history and the specific pattern of iron studies make this
diagnosis certain. Vitamin B12 and folate deficiencies cause macrocytic anemia
(elevated MCV), not microcytic. Anemia of chronic disease typically presents with
normal MCV or mild microcytosis with normal or elevated ferritin. Aplastic anemia
would show pancytopenia. Further workup should identify the source of blood loss
or malabsorption in this patient.
Question 5: A 67-year-old man with hypertension and hyperlipidemia presents
with sudden onset of severe chest pain radiating to his back, accompanied by
diaphoresis and a blood pressure of 190/110 mmHg. He appears acutely
distressed. What is your immediate diagnostic priority?
A) Perform a 12-lead ECG to assess for myocardial infarction
B) Obtain a chest X-ray to evaluate for pneumonia
C) Obtain emergent chest CT angiography or transesophageal echocardiography to
evaluate for aortic dissection
D) Administer aspirin and start anticoagulation therapy
E) Perform an exercise stress test
CORRECT ANSWER: C) Obtain emergent chest CT angiography or
transesophageal echocardiography to evaluate for aortic dissection
RATIONALE: This clinical presentation is classic for acute aortic dissection: sudden
onset of severe tearing chest pain radiating to the back with hemodynamic
instability (markedly elevated blood pressure) and acute distress. Aortic dissection
is a life-threatening emergency requiring immediate imaging confirmation. While an
ECG is appropriate to rule out acute MI, it would not be the priority given this
Diagnosis & Primary Care Practicum
Questions, Answers & Rationales |
Chamberlain Nursing Exam Prep
NR 511 MIDTERM EXAM 2026 | DIFFERENTIAL DIAGNOSIS & PRIMARY CARE
PRACTICUM
Questions, Answers & Rationales | Chamberlain Nursing Exam Prep
DOCUMENT OVERVIEW
• This comprehensive exam prep material contains evidence-based multiple-choice
questions designed to strengthen your diagnostic reasoning and clinical decision-
making skills for primary care practice.
• Study strategically by working through questions in topic blocks, reviewing
rationales carefully, and identifying knowledge gaps to focus your review efforts
before the midterm examination.
Question 1: A 45-year-old woman presents with a 2-week history of
progressive dyspnea, chest pain with deep inspiration, and a dry cough.
Physical examination reveals decreased breath sounds bilaterally and
dullness to percussion at the right base. Which is the most likely diagnosis?
A) Acute bronchitis
B) Pneumonia
C) Pleural effusion
D) Acute exacerbation of asthma
E) Spontaneous pneumothorax
CORRECT ANSWER: C) Pleural effusion
,RATIONALE: Pleural effusion presents with the classic triad of dyspnea, pleuritic
chest pain, and a dry cough. The physical examination findings of decreased breath
sounds and dullness to percussion at the base of the lung are pathognomonic for
pleural effusion. The 2-week progressive history supports a subacute presentation.
While pneumonia could present similarly, the lack of productive cough and
systemic symptoms makes pleural effusion more likely. Acute bronchitis and
asthma exacerbation would present with wheezing rather than decreased breath
sounds. Pneumothorax would present with hyperresonance, not dullness.
Question 2: A 28-year-old male presents with acute onset of severe testicular
pain and swelling. On examination, the affected testis is elevated and tender.
The cremasteric reflex is present. What is your primary differential diagnosis?
A) Testicular torsion
B) Epididymitis
C) Orchitis
D) Inguinal hernia
E) Trauma-related hematocele
CORRECT ANSWER: B) Epididymitis
RATIONALE: The presence of the cremasteric reflex is a crucial clinical finding that
essentially rules out testicular torsion. Testicular torsion presents with acute severe
pain and an absent cremasteric reflex—this is the most sensitive and specific
clinical finding for torsion. Epididymitis presents with testicular pain, swelling, and
tenderness but maintains the cremasteric reflex. The normal reflex response
indicates the cord structures are not twisted. Orchitis and epididymitis often occur
together; however, epididymitis is the initial inflammation. Inguinal hernia and
hematocele would present with different physical examination findings.
Question 3: A 52-year-old man with a 15-year history of type 2 diabetes
mellitus presents with complaints of blurred vision, floaters, and occasional
,flashing lights. He reports these symptoms started one week ago. His HbA1c is
8.9%. What is your primary concern?
A) Diabetic cataracts
B) Diabetic retinopathy with possible vitreous hemorrhage or retinal detachment
C) Acute angle-closure glaucoma
D) Dry eye syndrome
E) Presbyopia
CORRECT ANSWER: B) Diabetic retinopathy with possible vitreous hemorrhage
or retinal detachment
RATIONALE: The combination of blurred vision, floaters, and flashing lights
(photopsia) in a patient with poorly controlled diabetes (HbA1c 8.9%) and a long
duration of disease is highly suggestive of progressive diabetic retinopathy. Floaters
suggest vitreous involvement, and flashing lights indicate retinal traction or
detachment risk. These are vision-threatening emergencies requiring urgent
ophthalmologic evaluation. Diabetic cataracts develop more gradually and present
with progressive painless vision loss. Acute angle-closure glaucoma presents with
severe eye pain, halos, and mid-dilated pupil. Dry eye and presbyopia do not
explain the acute floaters and photopsia. This patient requires immediate referral
to ophthalmology.
Question 4: A 34-year-old woman with no significant past medical history
presents with a 3-month history of progressive fatigue, dyspnea on exertion,
and palpitations. Laboratory workup shows: Hemoglobin 8.2 g/dL, MCV 62 fL,
ferritin 12 ng/mL, and iron saturation 15%. Which is the most likely diagnosis?
A) Vitamin B12 deficiency anemia
B) Folate deficiency anemia
C) Iron deficiency anemia
D) Anemia of chronic disease
, E) Aplastic anemia
CORRECT ANSWER: C) Iron deficiency anemia
RATIONALE: The laboratory findings are diagnostic for iron deficiency anemia: low
hemoglobin, microcytic anemia (low MCV), low ferritin, and reduced iron saturation.
Iron deficiency anemia is the most common cause of anemia worldwide. The 3-
month progressive history and the specific pattern of iron studies make this
diagnosis certain. Vitamin B12 and folate deficiencies cause macrocytic anemia
(elevated MCV), not microcytic. Anemia of chronic disease typically presents with
normal MCV or mild microcytosis with normal or elevated ferritin. Aplastic anemia
would show pancytopenia. Further workup should identify the source of blood loss
or malabsorption in this patient.
Question 5: A 67-year-old man with hypertension and hyperlipidemia presents
with sudden onset of severe chest pain radiating to his back, accompanied by
diaphoresis and a blood pressure of 190/110 mmHg. He appears acutely
distressed. What is your immediate diagnostic priority?
A) Perform a 12-lead ECG to assess for myocardial infarction
B) Obtain a chest X-ray to evaluate for pneumonia
C) Obtain emergent chest CT angiography or transesophageal echocardiography to
evaluate for aortic dissection
D) Administer aspirin and start anticoagulation therapy
E) Perform an exercise stress test
CORRECT ANSWER: C) Obtain emergent chest CT angiography or
transesophageal echocardiography to evaluate for aortic dissection
RATIONALE: This clinical presentation is classic for acute aortic dissection: sudden
onset of severe tearing chest pain radiating to the back with hemodynamic
instability (markedly elevated blood pressure) and acute distress. Aortic dissection
is a life-threatening emergency requiring immediate imaging confirmation. While an
ECG is appropriate to rule out acute MI, it would not be the priority given this
