NR 511
Differential Diagnosis & Primary Care Practicum
Final Exam Prep Question Bank
Latest 2026/2027 Edition
100 Original Practice Questions & Detailed Rationales
Author-created, independently written content for exam preparation purposes.
This resource is not affiliated with, endorsed by, or reproduced from Chamberlain University,
any textbook publisher, instructor resources, examination materials, or proprietary test banks.
,Instructions
This examination contains 100 original multiple-choice questions designed to mirror the scope, format,
and rigor of a graduate-level Family Nurse Practitioner differential diagnosis and primary care course.
Questions cover clinical reasoning, diagnostic testing, laboratory interpretation, evidence-based
management, pharmacology, preventive care, and patient education across the adult lifespan. Read each
scenario carefully, select the single best answer, and review the rationale provided. Topics are
intentionally interspersed to mirror the format of a comprehensive final examination.
,Question 1. A 58-year-old man presents for a routine visit. He has no complaints. Which approach
best reflects the diagnostic reasoning process a family nurse practitioner should use when a patient
is asymptomatic but has multiple cardiovascular risk factors?
A. Order every available screening test to avoid missing a diagnosis
B. Use risk-stratification tools and pretest probability to guide targeted screening
C. Defer all testing until the patient develops symptoms
D. Refer immediately to cardiology for a full workup
Correct Answer: B
Rationale: Evidence-based primary care relies on pretest probability and validated risk calculators
(e.g., ASCVD risk score) to determine which tests add clinical value. Ordering indiscriminate testing
increases false positives and cost without improving outcomes, while withholding all testing ignores
modifiable risk. Referral is not warranted without an abnormal finding or high-risk feature.
Question 2. Which statement best describes the concept of a 'differential diagnosis' in primary care
practice?
A. A single diagnosis confirmed by laboratory testing
B. A ranked list of possible conditions that could explain the patient's presentation
C. The diagnosis given by the specialist after referral
D. A list of diagnoses to be ruled out only after treatment fails
Correct Answer: B
Rationale: A differential diagnosis is a prioritized list of plausible conditions based on the history,
exam, and epidemiology, which then guides further testing. It is generated early in the encounter, not
after treatment failure, and does not require specialist confirmation.
Question 3. A 42-year-old woman with a 3-day history of dysuria, urgency, and suprapubic
discomfort has no fever, flank pain, or vaginal discharge. Urinalysis shows leukocyte esterase and
nitrites positive. What is the most appropriate initial management?
A. Obtain a urine culture before starting any treatment
B. Begin empiric antibiotic therapy for uncomplicated cystitis without culture
C. Order a renal ultrasound
D. Refer to urology
Correct Answer: B
Rationale: Uncomplicated cystitis in a nonpregnant woman with classic symptoms and a positive
dipstick can be treated empirically without culture. Culture is reserved for complicated infection,
treatment failure, recurrent infection, or pregnancy. Imaging and referral are unnecessary for an
uncomplicated first presentation.
, Question 4. A patient asks why the nurse practitioner is calculating a 'pretest probability' before
ordering a D-dimer for suspected deep vein thrombosis. Which explanation is most accurate?
A. It determines insurance coverage for the test
B. It estimates how likely the disease is before testing, which affects how test results should be
interpreted
C. It is required only for research studies
D. It replaces the need for physical examination
Correct Answer: B
Rationale: Pretest probability (e.g., via the Wells score) shapes interpretation of subsequent test
results; a negative D-dimer is reassuring only in low-to-moderate pretest probability patients. In high
pretest probability, imaging is warranted regardless of D-dimer result. This concept is central to
evidence-based diagnostic reasoning, not billing.
Question 5. A 65-year-old man with hypertension controlled on lisinopril presents with a blood
pressure of 158/94 mmHg on two separate visits despite good medication adherence. Which is the
most appropriate next step?
A. Increase the lisinopril dose or add a second agent
B. Discontinue lisinopril and start a beta-blocker alone
C. Recheck blood pressure in one year
D. Order genetic testing for hypertension
Correct Answer: A
Rationale: Current guidelines support intensifying therapy—either titrating the current agent or
adding a complementary class such as a thiazide or calcium channel blocker—when blood pressure
remains above goal despite adherence. Discontinuing an effective ACE inhibitor is not indicated, and
deferring management for a year risks end-organ damage.
Question 6. A 55-year-old woman newly diagnosed with type 2 diabetes has an HbA1c of 7.8%,
normal renal function, and no cardiovascular disease. Per current evidence-based guidelines, which
is the most appropriate first-line pharmacologic agent?
A. Metformin
B. Glipizide
C. Insulin glargine
D. Pioglitazone
Correct Answer: A
Rationale: Metformin remains first-line therapy for most patients with newly diagnosed type 2
diabetes due to its efficacy, weight neutrality, low hypoglycemia risk, and cardiovascular safety
profile, assuming no contraindications such as significant renal impairment. Sulfonylureas and insulin
are typically reserved for later steps or specific indications.
Differential Diagnosis & Primary Care Practicum
Final Exam Prep Question Bank
Latest 2026/2027 Edition
100 Original Practice Questions & Detailed Rationales
Author-created, independently written content for exam preparation purposes.
This resource is not affiliated with, endorsed by, or reproduced from Chamberlain University,
any textbook publisher, instructor resources, examination materials, or proprietary test banks.
,Instructions
This examination contains 100 original multiple-choice questions designed to mirror the scope, format,
and rigor of a graduate-level Family Nurse Practitioner differential diagnosis and primary care course.
Questions cover clinical reasoning, diagnostic testing, laboratory interpretation, evidence-based
management, pharmacology, preventive care, and patient education across the adult lifespan. Read each
scenario carefully, select the single best answer, and review the rationale provided. Topics are
intentionally interspersed to mirror the format of a comprehensive final examination.
,Question 1. A 58-year-old man presents for a routine visit. He has no complaints. Which approach
best reflects the diagnostic reasoning process a family nurse practitioner should use when a patient
is asymptomatic but has multiple cardiovascular risk factors?
A. Order every available screening test to avoid missing a diagnosis
B. Use risk-stratification tools and pretest probability to guide targeted screening
C. Defer all testing until the patient develops symptoms
D. Refer immediately to cardiology for a full workup
Correct Answer: B
Rationale: Evidence-based primary care relies on pretest probability and validated risk calculators
(e.g., ASCVD risk score) to determine which tests add clinical value. Ordering indiscriminate testing
increases false positives and cost without improving outcomes, while withholding all testing ignores
modifiable risk. Referral is not warranted without an abnormal finding or high-risk feature.
Question 2. Which statement best describes the concept of a 'differential diagnosis' in primary care
practice?
A. A single diagnosis confirmed by laboratory testing
B. A ranked list of possible conditions that could explain the patient's presentation
C. The diagnosis given by the specialist after referral
D. A list of diagnoses to be ruled out only after treatment fails
Correct Answer: B
Rationale: A differential diagnosis is a prioritized list of plausible conditions based on the history,
exam, and epidemiology, which then guides further testing. It is generated early in the encounter, not
after treatment failure, and does not require specialist confirmation.
Question 3. A 42-year-old woman with a 3-day history of dysuria, urgency, and suprapubic
discomfort has no fever, flank pain, or vaginal discharge. Urinalysis shows leukocyte esterase and
nitrites positive. What is the most appropriate initial management?
A. Obtain a urine culture before starting any treatment
B. Begin empiric antibiotic therapy for uncomplicated cystitis without culture
C. Order a renal ultrasound
D. Refer to urology
Correct Answer: B
Rationale: Uncomplicated cystitis in a nonpregnant woman with classic symptoms and a positive
dipstick can be treated empirically without culture. Culture is reserved for complicated infection,
treatment failure, recurrent infection, or pregnancy. Imaging and referral are unnecessary for an
uncomplicated first presentation.
, Question 4. A patient asks why the nurse practitioner is calculating a 'pretest probability' before
ordering a D-dimer for suspected deep vein thrombosis. Which explanation is most accurate?
A. It determines insurance coverage for the test
B. It estimates how likely the disease is before testing, which affects how test results should be
interpreted
C. It is required only for research studies
D. It replaces the need for physical examination
Correct Answer: B
Rationale: Pretest probability (e.g., via the Wells score) shapes interpretation of subsequent test
results; a negative D-dimer is reassuring only in low-to-moderate pretest probability patients. In high
pretest probability, imaging is warranted regardless of D-dimer result. This concept is central to
evidence-based diagnostic reasoning, not billing.
Question 5. A 65-year-old man with hypertension controlled on lisinopril presents with a blood
pressure of 158/94 mmHg on two separate visits despite good medication adherence. Which is the
most appropriate next step?
A. Increase the lisinopril dose or add a second agent
B. Discontinue lisinopril and start a beta-blocker alone
C. Recheck blood pressure in one year
D. Order genetic testing for hypertension
Correct Answer: A
Rationale: Current guidelines support intensifying therapy—either titrating the current agent or
adding a complementary class such as a thiazide or calcium channel blocker—when blood pressure
remains above goal despite adherence. Discontinuing an effective ACE inhibitor is not indicated, and
deferring management for a year risks end-organ damage.
Question 6. A 55-year-old woman newly diagnosed with type 2 diabetes has an HbA1c of 7.8%,
normal renal function, and no cardiovascular disease. Per current evidence-based guidelines, which
is the most appropriate first-line pharmacologic agent?
A. Metformin
B. Glipizide
C. Insulin glargine
D. Pioglitazone
Correct Answer: A
Rationale: Metformin remains first-line therapy for most patients with newly diagnosed type 2
diabetes due to its efficacy, weight neutrality, low hypoglycemia risk, and cardiovascular safety
profile, assuming no contraindications such as significant renal impairment. Sulfonylureas and insulin
are typically reserved for later steps or specific indications.
