WGU D454 ADULT HEALTH III
OBJECTIVE ASSESSMENT (OA V1
AND V2) | FULL QUESTIONS AND
LATEST MOCK PRACTICE SET
199 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
WGU D454 ADULT HEALTH III OBJECTIVE ASSESSMENT (OA V1 AND V2) | FULL QUESTIONS AND
ANSWERS | 2026/27 UPDATE. It contains 199 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 199 Questions
Foundations - Application - WGU D454 Adult Health III Objective Assessment OA V1 AND V2 FULL AND
2026/27 Update Adult Health III Complex CARE Nursing Undergraduate YEAR 3 Baccalaureate Nursing
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Management OF CARE 1-34 Acute, Appropriate, Develops, Injury, Syndrome
Safety AND Infection Control 35-68 Acute, Appropriate, Finding, Develops, Intervention
Health Promotion AND 69-102 Acute, Finding, Develops, Appropriate, Indicates
Maintenance
Psychosocial Integrity 103-136 Acute, Finding, Intervention, Appropriate, Kidney
Basic CARE AND Comfort 137-170 Acute, Appropriate, Intervention, Develops, Injury
Pharmacological Therapies 171-199 Acute, Finding, Intervention, Appropriate, Disease
TOTAL 199 All questions include answers and detailed rationales
,Section A - Management OF CARE
Q1.
A patient with septic shock remains hypotensive despite adequate fluid resuscitation and
norepinephrine infusion. The provider orders a trial of vasopressin. Which hemodynamic
parameter best indicates that the addition of vasopressin is improving systemic vascular
resistance?
A. Decreased mixed venous oxygen B. Increased cardiac output (CO)
saturation (SvO2)
C. Increased systemic vascular resistance D. Decreased pulmonary artery wedge
(SVR) pressure (PAWP)
Correct: C - Increased systemic vascular resistance (SVR)
Rationale:Vasopressin is a potent vasoconstrictor that increases SVR, thereby improving
mean arterial pressure in distributive shock. SvO2 may improve with better perfusion, but it is
not a direct measure of SVR. CO may decrease if afterload increases, and PAWP reflects
preload, not SVR.
Q2.
A patient with acute respiratory distress syndrome (ARDS) is on volume-controlled
ventilation with plateau pressures of 32 cm H2O. Which ventilator adjustment best
adheres to lung-protective ventilation strategies?
A. Increase PEEP to 20 cm H2O with a B. Decrease tidal volume to 4-6 mL/kg of
recruitment maneuver predicted body weight
C. Switch to pressure-controlled ventilation D. Increase FiO2 to 100% to improve
with a peak pressure of 40 cm H2O oxygenation
Correct: B - Decrease tidal volume to 4-6 mL/kg of predicted body weight
Rationale:Lung-protective ventilation for ARDS requires low tidal volumes (4-6 mL/kg PBW)
to minimize ventilator-induced lung injury and keep plateau pressure <30 cm H2O. Increasing
PEEP may be considered, but the primary intervention is reducing tidal volume. High peak
pressures and 100% FiO2 are not protective.
Q3.
A patient with a subarachnoid hemorrhage develops acute hyponatremia with a serum
sodium of 128 mEq/L, urine osmolality of 600 mOsm/kg, and urine sodium of 80 mEq/L.
The patient is euvolemic on assessment. Which condition is most consistent with these
findings?
Page 3
, Section A - Management OF CARE
A. Cerebral salt wasting (CSW) B. Syndrome of inappropriate antidiuretic
hormone (SIADH)
C. Diabetes insipidus (DI) D. Acute adrenal insufficiency
Correct: B - Syndrome of inappropriate antidiuretic hormone (SIADH)
Rationale:SIADH is characterized by euvolemic hyponatremia with high urine osmolality and
high urine sodium, as seen here. CSW presents with hypovolemia and similar urine findings.
DI causes hypernatremia with dilute urine. Adrenal insufficiency may cause hyponatremia but
typically with hyperkalemia and hypotension.
Q4.
A patient with acute decompensated heart failure and a left ventricular assist device
(LVAD) presents with low flow alarms and mean arterial pressure of 55 mm Hg. Which
initial nursing action is most appropriate?
A. Administer a fluid bolus immediately B. Check the driveline site for infection
C. Assess for signs of right ventricular D. Decrease afterload with a vasodilator
failure
Correct: C - Assess for signs of right ventricular failure
Rationale:Low flow alarms in LVAD patients often indicate decreased preload, increased
afterload, or right ventricular failure. Assessing for right ventricular failure is crucial because it
can reduce LVAD filling. Fluid bolus may be given if hypovolemic, but the first step is
assessment. Driveline infection is not the immediate cause of low flow. Decreasing afterload
may worsen hypotension.
Q5.
A patient with acute liver failure develops hepatic encephalopathy with asterixis and
confusion. The provider orders lactulose. Which therapeutic endpoint indicates effective
treatment?
A. Serum ammonia level below 50 mcg/dL B. Two to three soft bowel movements per
day
C. Decreased serum bilirubin level D. Improved Glasgow Coma Scale score to
15
Correct: B - Two to three soft bowel movements per day
Page 4
OBJECTIVE ASSESSMENT (OA V1
AND V2) | FULL QUESTIONS AND
LATEST MOCK PRACTICE SET
199 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
WGU D454 ADULT HEALTH III OBJECTIVE ASSESSMENT (OA V1 AND V2) | FULL QUESTIONS AND
ANSWERS | 2026/27 UPDATE. It contains 199 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 199 Questions
Foundations - Application - WGU D454 Adult Health III Objective Assessment OA V1 AND V2 FULL AND
2026/27 Update Adult Health III Complex CARE Nursing Undergraduate YEAR 3 Baccalaureate Nursing
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Management OF CARE 1-34 Acute, Appropriate, Develops, Injury, Syndrome
Safety AND Infection Control 35-68 Acute, Appropriate, Finding, Develops, Intervention
Health Promotion AND 69-102 Acute, Finding, Develops, Appropriate, Indicates
Maintenance
Psychosocial Integrity 103-136 Acute, Finding, Intervention, Appropriate, Kidney
Basic CARE AND Comfort 137-170 Acute, Appropriate, Intervention, Develops, Injury
Pharmacological Therapies 171-199 Acute, Finding, Intervention, Appropriate, Disease
TOTAL 199 All questions include answers and detailed rationales
,Section A - Management OF CARE
Q1.
A patient with septic shock remains hypotensive despite adequate fluid resuscitation and
norepinephrine infusion. The provider orders a trial of vasopressin. Which hemodynamic
parameter best indicates that the addition of vasopressin is improving systemic vascular
resistance?
A. Decreased mixed venous oxygen B. Increased cardiac output (CO)
saturation (SvO2)
C. Increased systemic vascular resistance D. Decreased pulmonary artery wedge
(SVR) pressure (PAWP)
Correct: C - Increased systemic vascular resistance (SVR)
Rationale:Vasopressin is a potent vasoconstrictor that increases SVR, thereby improving
mean arterial pressure in distributive shock. SvO2 may improve with better perfusion, but it is
not a direct measure of SVR. CO may decrease if afterload increases, and PAWP reflects
preload, not SVR.
Q2.
A patient with acute respiratory distress syndrome (ARDS) is on volume-controlled
ventilation with plateau pressures of 32 cm H2O. Which ventilator adjustment best
adheres to lung-protective ventilation strategies?
A. Increase PEEP to 20 cm H2O with a B. Decrease tidal volume to 4-6 mL/kg of
recruitment maneuver predicted body weight
C. Switch to pressure-controlled ventilation D. Increase FiO2 to 100% to improve
with a peak pressure of 40 cm H2O oxygenation
Correct: B - Decrease tidal volume to 4-6 mL/kg of predicted body weight
Rationale:Lung-protective ventilation for ARDS requires low tidal volumes (4-6 mL/kg PBW)
to minimize ventilator-induced lung injury and keep plateau pressure <30 cm H2O. Increasing
PEEP may be considered, but the primary intervention is reducing tidal volume. High peak
pressures and 100% FiO2 are not protective.
Q3.
A patient with a subarachnoid hemorrhage develops acute hyponatremia with a serum
sodium of 128 mEq/L, urine osmolality of 600 mOsm/kg, and urine sodium of 80 mEq/L.
The patient is euvolemic on assessment. Which condition is most consistent with these
findings?
Page 3
, Section A - Management OF CARE
A. Cerebral salt wasting (CSW) B. Syndrome of inappropriate antidiuretic
hormone (SIADH)
C. Diabetes insipidus (DI) D. Acute adrenal insufficiency
Correct: B - Syndrome of inappropriate antidiuretic hormone (SIADH)
Rationale:SIADH is characterized by euvolemic hyponatremia with high urine osmolality and
high urine sodium, as seen here. CSW presents with hypovolemia and similar urine findings.
DI causes hypernatremia with dilute urine. Adrenal insufficiency may cause hyponatremia but
typically with hyperkalemia and hypotension.
Q4.
A patient with acute decompensated heart failure and a left ventricular assist device
(LVAD) presents with low flow alarms and mean arterial pressure of 55 mm Hg. Which
initial nursing action is most appropriate?
A. Administer a fluid bolus immediately B. Check the driveline site for infection
C. Assess for signs of right ventricular D. Decrease afterload with a vasodilator
failure
Correct: C - Assess for signs of right ventricular failure
Rationale:Low flow alarms in LVAD patients often indicate decreased preload, increased
afterload, or right ventricular failure. Assessing for right ventricular failure is crucial because it
can reduce LVAD filling. Fluid bolus may be given if hypovolemic, but the first step is
assessment. Driveline infection is not the immediate cause of low flow. Decreasing afterload
may worsen hypotension.
Q5.
A patient with acute liver failure develops hepatic encephalopathy with asterixis and
confusion. The provider orders lactulose. Which therapeutic endpoint indicates effective
treatment?
A. Serum ammonia level below 50 mcg/dL B. Two to three soft bowel movements per
day
C. Decreased serum bilirubin level D. Improved Glasgow Coma Scale score to
15
Correct: B - Two to three soft bowel movements per day
Page 4
