WILKES NSG 550 EXAM 3 -
DIAGNOSTIC REASONING (2026)
ACTUAL QUESTIONS & STUDY
LATEST MOCK PRACTICE SET
200 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
WILKES NSG 550 EXAM 3 - DIAGNOSTIC REASONING (2026) ACTUAL QUESTIONS & STUDY GUIDE |
GUARANTEE PASS. It contains 200 carefully selected questions that reflect the most current exam content and
testing strategies. Each question is accompanied by a correct answer and a detailed rationale that explains the
underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 200 Questions
Foundations - Application - Wilkes NSG 550 3 Diagnostic Reasoning 2026 Actual & Study Guide
Guarantee PASS Diagnostic Reasoning IN Advanced Nursing Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Diagnostic 1-50 Acute, Presents, Suspected, Appropriate, Disease
Acute 51-100 Suspected, Diagnostic, Appropriate, Finding, Presents
Suspected 101-150 Diagnostic, Acute, Disease, Appropriate, Presents
Appropriate 151-200 Diagnostic, Suspected, Acute, Presents, Diagnosis
TOTAL 200 All questions include answers and detailed rationales
,Section A - Diagnostic
Q1.
A 45-year-old patient presents with new-onset headaches, jaw claudication, and vision
changes. Which diagnostic test has the highest sensitivity for confirming the suspected
diagnosis?
A. Temporal artery biopsy B. Erythrocyte sedimentation rate (ESR)
C. C-reactive protein (CRP) D. Magnetic resonance angiography (MRA)
Correct: A - Temporal artery biopsy
Rationale:Temporal artery biopsy remains the gold standard for diagnosing giant cell arteritis,
with a sensitivity of 87-91%. While ESR and CRP are often elevated, they are nonspecific.
MRA may show vessel inflammation but is less sensitive than biopsy. Therefore, biopsy is the
best confirmatory test.
Q2.
A patient with chronic kidney disease (GFR 25 mL/min) requires a contrast-enhanced CT.
Which prophylactic measure is most evidence-based to reduce the risk of
contrast-induced nephropathy?
A. N-acetylcysteine 1200 mg PO twice daily B. Intravenous normal saline 1 mL/kg/hour
before and after contrast for 12 hours before and after contrast
C. Sodium bicarbonate infusion 154 mEq/L D. Withholding metformin for 48 hours
at 3 mL/kg/hour for 1 hour before contrast before contrast
Correct: B - Intravenous normal saline 1 mL/kg/hour for 12 hours before and after contrast
Rationale:Current evidence supports volume expansion with isotonic crystalloid (normal
saline) as the most effective prophylaxis for contrast-induced nephropathy. N-acetylcysteine
and sodium bicarbonate have not shown consistent benefit in large trials. Withholding
metformin is unrelated to renal protection.
Q3.
In a patient with suspected pulmonary embolism and a Wells score of 4.5, what is the
most appropriate next step according to current guidelines?
A. D-dimer testing B. CT pulmonary angiography
C. Ventilation-perfusion (V/Q) scan D. Lower extremity venous ultrasound
Correct: B - CT pulmonary angiography
Page 3
, Section A - Diagnostic
Rationale: A Wells score >4 indicates a high pretest probability for PE, making D-dimer
testing inappropriate due to low specificity. CT pulmonary angiography is the recommended
initial imaging in this setting. V/Q scan is reserved for patients with contraindications to CT.
Venous ultrasound may be considered, but CT is more definitive.
Q4.
Which combination of symptoms and signs is most indicative of a hypertensive
emergency rather than a hypertensive urgency?
A. Blood pressure 210/120 mmHg and B. Blood pressure 180/110 mmHg and
headache epistaxis
C. Blood pressure 200/110 mmHg and chest D. Blood pressure 170/100 mmHg and
pain dizziness
Correct: C - Blood pressure 200/110 mmHg and chest pain
Rationale:Hypertensive emergency is defined as severe hypertension (often >180/120
mmHg) with acute target organ damage, such as chest pain (myocardial ischemia),
neurological deficits, or renal failure. Epistaxis and headache without other symptoms are
typically not emergencies. Dizziness is nonspecific and not indicative of acute organ damage.
Q5.
A patient presents with acute onset of severe flank pain radiating to the groin, hematuria,
and nausea. What is the most sensitive diagnostic imaging modality for ureteral calculi?
A. Abdominal radiograph B. Renal ultrasound
C. Non-contrast helical CT D. Intravenous pyelogram
Correct: C - Non-contrast helical CT
Rationale:Non-contrast helical CT has a sensitivity of 97-98% for detecting ureteral calculi
and is the preferred imaging modality. Radiographs miss radiolucent stones, ultrasound is
less sensitive for small stones in the mid-ureter, and IVP requires contrast and has lower
sensitivity.
Q6.
Which of the following clinical scenarios is most consistent with a diagnosis of acute
bacterial meningitis rather than viral meningitis?
A. Gradual onset of headache, photophobia, B. Rapid onset of high fever, altered mental
and mild neck stiffness over 5 days status, and petechial rash
C. Presence of mononuclear cells in CSF D. Symptoms preceded by upper respiratory
with normal glucose infection and self-limiting course
Page 4
DIAGNOSTIC REASONING (2026)
ACTUAL QUESTIONS & STUDY
LATEST MOCK PRACTICE SET
200 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
WILKES NSG 550 EXAM 3 - DIAGNOSTIC REASONING (2026) ACTUAL QUESTIONS & STUDY GUIDE |
GUARANTEE PASS. It contains 200 carefully selected questions that reflect the most current exam content and
testing strategies. Each question is accompanied by a correct answer and a detailed rationale that explains the
underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 200 Questions
Foundations - Application - Wilkes NSG 550 3 Diagnostic Reasoning 2026 Actual & Study Guide
Guarantee PASS Diagnostic Reasoning IN Advanced Nursing Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Diagnostic 1-50 Acute, Presents, Suspected, Appropriate, Disease
Acute 51-100 Suspected, Diagnostic, Appropriate, Finding, Presents
Suspected 101-150 Diagnostic, Acute, Disease, Appropriate, Presents
Appropriate 151-200 Diagnostic, Suspected, Acute, Presents, Diagnosis
TOTAL 200 All questions include answers and detailed rationales
,Section A - Diagnostic
Q1.
A 45-year-old patient presents with new-onset headaches, jaw claudication, and vision
changes. Which diagnostic test has the highest sensitivity for confirming the suspected
diagnosis?
A. Temporal artery biopsy B. Erythrocyte sedimentation rate (ESR)
C. C-reactive protein (CRP) D. Magnetic resonance angiography (MRA)
Correct: A - Temporal artery biopsy
Rationale:Temporal artery biopsy remains the gold standard for diagnosing giant cell arteritis,
with a sensitivity of 87-91%. While ESR and CRP are often elevated, they are nonspecific.
MRA may show vessel inflammation but is less sensitive than biopsy. Therefore, biopsy is the
best confirmatory test.
Q2.
A patient with chronic kidney disease (GFR 25 mL/min) requires a contrast-enhanced CT.
Which prophylactic measure is most evidence-based to reduce the risk of
contrast-induced nephropathy?
A. N-acetylcysteine 1200 mg PO twice daily B. Intravenous normal saline 1 mL/kg/hour
before and after contrast for 12 hours before and after contrast
C. Sodium bicarbonate infusion 154 mEq/L D. Withholding metformin for 48 hours
at 3 mL/kg/hour for 1 hour before contrast before contrast
Correct: B - Intravenous normal saline 1 mL/kg/hour for 12 hours before and after contrast
Rationale:Current evidence supports volume expansion with isotonic crystalloid (normal
saline) as the most effective prophylaxis for contrast-induced nephropathy. N-acetylcysteine
and sodium bicarbonate have not shown consistent benefit in large trials. Withholding
metformin is unrelated to renal protection.
Q3.
In a patient with suspected pulmonary embolism and a Wells score of 4.5, what is the
most appropriate next step according to current guidelines?
A. D-dimer testing B. CT pulmonary angiography
C. Ventilation-perfusion (V/Q) scan D. Lower extremity venous ultrasound
Correct: B - CT pulmonary angiography
Page 3
, Section A - Diagnostic
Rationale: A Wells score >4 indicates a high pretest probability for PE, making D-dimer
testing inappropriate due to low specificity. CT pulmonary angiography is the recommended
initial imaging in this setting. V/Q scan is reserved for patients with contraindications to CT.
Venous ultrasound may be considered, but CT is more definitive.
Q4.
Which combination of symptoms and signs is most indicative of a hypertensive
emergency rather than a hypertensive urgency?
A. Blood pressure 210/120 mmHg and B. Blood pressure 180/110 mmHg and
headache epistaxis
C. Blood pressure 200/110 mmHg and chest D. Blood pressure 170/100 mmHg and
pain dizziness
Correct: C - Blood pressure 200/110 mmHg and chest pain
Rationale:Hypertensive emergency is defined as severe hypertension (often >180/120
mmHg) with acute target organ damage, such as chest pain (myocardial ischemia),
neurological deficits, or renal failure. Epistaxis and headache without other symptoms are
typically not emergencies. Dizziness is nonspecific and not indicative of acute organ damage.
Q5.
A patient presents with acute onset of severe flank pain radiating to the groin, hematuria,
and nausea. What is the most sensitive diagnostic imaging modality for ureteral calculi?
A. Abdominal radiograph B. Renal ultrasound
C. Non-contrast helical CT D. Intravenous pyelogram
Correct: C - Non-contrast helical CT
Rationale:Non-contrast helical CT has a sensitivity of 97-98% for detecting ureteral calculi
and is the preferred imaging modality. Radiographs miss radiolucent stones, ultrasound is
less sensitive for small stones in the mid-ureter, and IVP requires contrast and has lower
sensitivity.
Q6.
Which of the following clinical scenarios is most consistent with a diagnosis of acute
bacterial meningitis rather than viral meningitis?
A. Gradual onset of headache, photophobia, B. Rapid onset of high fever, altered mental
and mild neck stiffness over 5 days status, and petechial rash
C. Presence of mononuclear cells in CSF D. Symptoms preceded by upper respiratory
with normal glucose infection and self-limiting course
Page 4
