Week 7 Quiz: NR511 / NR 511 (Latest Update 2026/2027) Differential Diagnosis & Primary Care Practicum | Review Questions & Verified Answers
OBJECTIVE ASSESSMENT - EXAM
Week 7 Quiz: NR511 / NR 511 (Latest
Update 2026/2027) Differential
Diagnosis & Primary Care Practicum |
Review Questions & Verified
Answers | 100% Correct | Grade A -
Chamberlain 2026/2027
QUESTIONS VERIFIED ANSWERS PASSING SCORE EDITION
25 100% 80% 2026/2027
TOPICS COVERED
• Heart Failure & Cardiomyopathy • Diabetes Management • Otitis Media
• Acute Coronary Syndromes • Thyroid Disorders • Psoriasis
• Arrhythmias & Anticoagulation • Rheumatoid Arthritis • Wernicke Encephalopathy
• Aortic Dissection • Low Back Pain & CTS • Peptic Ulcer Disease
• Lung Cancer & ILD • UTI & STI Management • Cholestatic Jaundice
COVER PAGE - 1
, SECTION 1: Cardiovascular & Pulmonary Disorders
Questions 1-9
Q1
A 58-year-old male presents to the clinic with a 3-week history of progressive dyspnea on exertion,
orthopnea, and bilateral lower extremity edema. He has a past medical history of hypertension and
type 2 diabetes mellitus. On physical exam, jugular venous distension is noted, and an S3 gallop is
auscultated at the cardiac apex. Which of the following is the most appropriate initial diagnostic test?
A. Transthoracic echocardiogram
B. Chest X-ray
C. B-type natriuretic peptide (BNP)
D. Cardiac catheterization
Correct Answer: A
Rationale:
A transthoracic echocardiogram is the gold standard initial test to evaluate left ventricular ejection fraction and identify the
underlying cause of heart failure symptoms. While BNP is useful for diagnosis and prognosis, it does not assess cardiac
structure or function. Chest X-ray may show pulmonary congestion but lacks functional assessment. Cardiac
catheterization is invasive and reserved for suspected ischemic etiology after initial evaluation.
Q2
A 34-year-old woman presents with recurrent episodes of palpitations, lightheadedness, and a
sensation of her heart 'racing' that began 2 months ago. Episodes last 15-30 minutes and resolve
spontaneously. Her resting ECG is normal. During a monitored episode, the rhythm strip shows a
narrow-complex tachycardia at 180 bpm with a regular R-R interval and absent P waves. Which of the
following is the most likely diagnosis?
A. Atrial fibrillation
B. Supraventricular tachycardia (AVNRT)
C. Ventricular tachycardia
D. Atrial flutter
Correct Answer: B
Rationale:
The combination of sudden onset/offset, narrow-complex regular tachycardia at 180 bpm, and absent P waves is classic
for AV-nodal reentrant tachycardia (AVNRT), the most common type of paroxysmal supraventricular tachycardia. Atrial
fibrillation would show an irregularly irregular rhythm. Ventricular tachycardia typically presents with a wide-complex QRS.
Atrial flutter usually demonstrates sawtooth flutter waves.
OBJECTIVE ASSESSMENT - EXAM
Week 7 Quiz: NR511 / NR 511 (Latest
Update 2026/2027) Differential
Diagnosis & Primary Care Practicum |
Review Questions & Verified
Answers | 100% Correct | Grade A -
Chamberlain 2026/2027
QUESTIONS VERIFIED ANSWERS PASSING SCORE EDITION
25 100% 80% 2026/2027
TOPICS COVERED
• Heart Failure & Cardiomyopathy • Diabetes Management • Otitis Media
• Acute Coronary Syndromes • Thyroid Disorders • Psoriasis
• Arrhythmias & Anticoagulation • Rheumatoid Arthritis • Wernicke Encephalopathy
• Aortic Dissection • Low Back Pain & CTS • Peptic Ulcer Disease
• Lung Cancer & ILD • UTI & STI Management • Cholestatic Jaundice
COVER PAGE - 1
, SECTION 1: Cardiovascular & Pulmonary Disorders
Questions 1-9
Q1
A 58-year-old male presents to the clinic with a 3-week history of progressive dyspnea on exertion,
orthopnea, and bilateral lower extremity edema. He has a past medical history of hypertension and
type 2 diabetes mellitus. On physical exam, jugular venous distension is noted, and an S3 gallop is
auscultated at the cardiac apex. Which of the following is the most appropriate initial diagnostic test?
A. Transthoracic echocardiogram
B. Chest X-ray
C. B-type natriuretic peptide (BNP)
D. Cardiac catheterization
Correct Answer: A
Rationale:
A transthoracic echocardiogram is the gold standard initial test to evaluate left ventricular ejection fraction and identify the
underlying cause of heart failure symptoms. While BNP is useful for diagnosis and prognosis, it does not assess cardiac
structure or function. Chest X-ray may show pulmonary congestion but lacks functional assessment. Cardiac
catheterization is invasive and reserved for suspected ischemic etiology after initial evaluation.
Q2
A 34-year-old woman presents with recurrent episodes of palpitations, lightheadedness, and a
sensation of her heart 'racing' that began 2 months ago. Episodes last 15-30 minutes and resolve
spontaneously. Her resting ECG is normal. During a monitored episode, the rhythm strip shows a
narrow-complex tachycardia at 180 bpm with a regular R-R interval and absent P waves. Which of the
following is the most likely diagnosis?
A. Atrial fibrillation
B. Supraventricular tachycardia (AVNRT)
C. Ventricular tachycardia
D. Atrial flutter
Correct Answer: B
Rationale:
The combination of sudden onset/offset, narrow-complex regular tachycardia at 180 bpm, and absent P waves is classic
for AV-nodal reentrant tachycardia (AVNRT), the most common type of paroxysmal supraventricular tachycardia. Atrial
fibrillation would show an irregularly irregular rhythm. Ventricular tachycardia typically presents with a wide-complex QRS.
Atrial flutter usually demonstrates sawtooth flutter waves.
