INTRODUCTION:
This comprehensive exam bank contains 500 multiple-choice questions with verified
answers and detailed rationales for the WGU D454 Adult Health III Objective
Assessment. It includes two full practice exams (Exam Set 1: Questions 1-250, Exam Set 2:
Questions 251-500), exam hints, test-taking strategies, and 100 study guide questions
with answers. Topics cover cardiovascular, respiratory, neurological, renal, endocrine,
gastrointestinal, critical care, pharmacology, and nursing prioritization. This resource is
designed to help you pass the OA on your first attempt with confidence.
CONTENTS:
- D454 OA EXAM SET 1 (Questions 1-250)
- D454 OA EXAM SET 2 (Questions 251-500)
- D454 AH III EXAM HINTS (15 Sections)
- D454 AH III Study Guide Qs w/ Ans (100 Questions)
EXAM SET 1
1. A client is admitted to the intensive care unit (ICU) after a colon resection with the
formation of a loop colostomy. The nurse determines the client's abdominal dressing is
clean and dry. Vital signs are temperature 100°F, heart rate 132 beats/minute, blood
pressure 88/65 mmHg, and urine output 10 mL/hour. Which intervention should the nurse
implement?
A. Give a fluid challenge of 500 mL IV bolus
B. Notify the provider of the fever
C. Assess the colostomy for patency
D. Increase the oxygen flow rate
Correct Answer: A
Rationale: The client's vital signs indicate hypovolemic shock (tachycardia HR 132,
hypotension BP 88/65, and oliguria urine output 10 mL/hr) likely due to fluid loss after
,colon resection surgery. The first-line treatment for hypovolemic shock is rapid fluid
resuscitation to improve blood pressure and restore kidney perfusion. A 500 mL IV fluid
bolus is the priority intervention. While the low-grade fever (100°F) and oxygenation are
concerns, they are secondary to the immediate circulatory collapse. The colostomy
assessment can wait until hemodynamics are stabilized. Hypovolemic shock from surgical
fluid loss requires immediate volume replacement to prevent further organ damage. The
urine output of 10 mL/hr indicates severe kidney hypoperfusion requiring immediate
correction. Prompt fluid resuscitation can reverse the shock state and prevent acute kidney
injury. The provider should be notified after initiating the fluid bolus, as this is an
emergency situation requiring additional interventions.
2. (Priority Nursing Interventions — Select All That Apply) Which interventions are priority
for a client who collapsed while mowing the lawn with heat stroke, core temp 109.4°F,
now in ICU with HR 79, BP 118/75, RR 14, O2 94%, temp 102.2°F, opens eyes only to
painful stimuli, dark yellow urine 16 mL, pupils 4 mm reactive, central line dressing soaked
with blood, ecchymosis under BP cuff?
A. Continue rapid cooling (ice packs, cooling blanket)
B. Monitor and manage central line bleeding
C. Monitor urine output hourly and notify provider if <30 mL/hr
D. Frequent neurological checks
E. Administer acetaminophen for fever
Correct Answers: A, B, C, D
Rationale: This client has heat stroke with rhabdomyolysis and coagulopathy. All selected
interventions are priorities:
A: Continued cooling is essential as temp remains elevated at 102.2°F (residual
hyperthermia). Heat stroke is a medical emergency characterized by core temperature
>104°F with central nervous system dysfunction. The client's temperature of 102.2°F
indicates ongoing hyperthermia requiring active cooling measures such as ice packs,
cooling blankets, and cold IV fluids to prevent further neurological damage. Cooling
should continue until core temperature reaches 101°F to avoid overcooling.
B: Central line bleeding indicates coagulopathy from heat-induced tissue injury and
requires immediate management. Heat stroke causes endothelial damage and activation
of the coagulation cascade, leading to disseminated intravascular coagulation (DIC). The
soaked dressing requires immediate assessment and intervention to prevent significant
blood loss and hemorrhagic complications.
C: Oliguria (16 mL dark yellow urine) signals acute kidney injury from rhabdomyolysis;
hourly monitoring is critical. Dark yellow urine with low output indicates myoglobinuria
from muscle breakdown, which can cause acute tubular necrosis. The threshold of 30 mL/hr
is the minimum acceptable urine output; values below this require provider notification and
possible fluid resuscitation or diuretic therapy.
,D: Altered mental status (opens eyes to pain only) requires frequent neuro checks to
monitor for brain injury progression. Heat stroke causes cerebral edema and neuronal
damage; Glasgow Coma Scale should be monitored hourly to detect deterioration
requiring intracranial pressure management or additional interventions.
E: Is incorrect: Acetaminophen is ineffective for heat stroke fever and may worsen liver
stress. Heat stroke hyperthermia is caused by environmental heat exposure and muscle
breakdown, not hypothalamic resetting. Antipyretics are ineffective and can cause
hepatotoxicity in the presence of rhabdomyolysis-induced liver dysfunction.
3. (Highlight Assessment Findings — Select All That Apply) HISTORY AND PHYSICAL: A
28-year-old male collapsed while mowing the lawn. Assessment findings: HR 79, BP
118/75, RR 14, O2 sat 94%, temp 102.2°F. Client opens eyes to painful stimuli, does not
follow commands. Skin pink and warm. 16 mL dark yellow urine from condom catheter.
Pupils 4 mm reactive. Central line dressing soaked with blood. Ecchymosis under BP cuff.
Which findings require immediate attention?
A. Temperature 102.2°F
B. Opens eyes only to painful stimuli, does not follow commands
C. 16 mL dark yellow urine
D. Central line dressing soaked with blood
E. Ecchymosis under BP cuff
F. Pupils 4 mm reactive
Correct Answers: A, B, C, D, E
Rationale: All findings except F require immediate attention:
A: Temperature 102.2°F indicates ongoing hyperthermia requiring continued cooling
measures. This temperature remains dangerously elevated and can cause further
neurological damage, protein denaturation, and multi-organ failure. Immediate cooling
interventions must continue until temperature is controlled.
B: Opens eyes only to painful stimuli indicates severe neurological impairment with GCS of
approximately 8 or less. This Glasgow Coma Scale finding indicates significant brain
dysfunction from heat stroke and requires frequent neurological monitoring, possible
intracranial pressure management, and airway protection.
C: 16 mL dark yellow urine indicates oliguria with concentrated urine, suggesting
rhabdomyolysis with myoglobinuria and acute kidney injury. This finding requires
immediate intervention including fluid resuscitation, urine output monitoring, and possible
renal replacement therapy.
D: Central line dressing soaked with blood indicates active bleeding from coagulopathy,
likely DIC. This requires immediate assessment of the site, pressure application, possible
suture placement, and notification of the provider for coagulation studies and blood
product replacement.
, E: Ecchymosis under BP cuff indicates coagulopathy with spontaneous bleeding and
requires immediate attention. This finding confirms the presence of DIC and requires
comprehensive coagulation assessment and management.
F: Pupils 4 mm reactive is a normal finding and does not require immediate intervention.
Bilateral reactive pupils suggest intact brainstem function, though this does not rule out
cerebral injury.
4. A client is 24 hours post-operative from a permanent pacemaker insertion. The nurse
observes a pacemaker spike before each QRS complex on the telemetry monitor. Which
intervention should the nurse implement?
A. Document paced rhythm
B. Prepare for transcutaneous pacing
C. Notify the provider of pacemaker malfunction
D. Administer atropine 0.5 mg IV
Correct Answer: A
Rationale: Spike before every QRS = ventricularly paced rhythm = pacemaker working
normally. A pacemaker spike is the electrical stimulus from the generator, and a spike
followed by a QRS complex indicates successful ventricular capture. This is the expected
finding post-permanent pacemaker insertion. The nurse should document the paced rhythm
and continue to monitor for capture loss (spike without QRS). No intervention is needed as
this represents normal pacemaker function. The presence of a spike before each QRS with
a corresponding ventricular response demonstrates appropriate sensing and capture of
the pacemaker. Transcutaneous pacing is only indicated for symptomatic bradycardia or
pacemaker failure. Pacemaker malfunction would be indicated by failure to capture
(spikes without QRS), failure to sense (spikes on T waves or inappropriate timing), or
failure to pace (no spikes when needed). Atropine is not indicated for a paced rhythm as
the pacemaker is functioning appropriately.
5. A 59-year-old female with hyperosmolar hyperglycemic syndrome (HHS) developed
abdominal pain several days ago and nausea starting yesterday. This morning she was
extremely drowsy and confused at work. Her coworker brought her to the hospital. Based
on laboratory values at 1600, which are appropriate nursing actions? (Select All That
Apply)
LABS:
- Blood Glucose: 250 mg/dL (Normal: 74-106)
- Sodium (Na+): 152 mEq/L (Normal: 135-145)
- Potassium (K+): 3.2 mEq/L (Normal: 3.5-5.0)
- Bicarbonate (HCO3-): 20 mEq/L (Normal: 22-26)
This comprehensive exam bank contains 500 multiple-choice questions with verified
answers and detailed rationales for the WGU D454 Adult Health III Objective
Assessment. It includes two full practice exams (Exam Set 1: Questions 1-250, Exam Set 2:
Questions 251-500), exam hints, test-taking strategies, and 100 study guide questions
with answers. Topics cover cardiovascular, respiratory, neurological, renal, endocrine,
gastrointestinal, critical care, pharmacology, and nursing prioritization. This resource is
designed to help you pass the OA on your first attempt with confidence.
CONTENTS:
- D454 OA EXAM SET 1 (Questions 1-250)
- D454 OA EXAM SET 2 (Questions 251-500)
- D454 AH III EXAM HINTS (15 Sections)
- D454 AH III Study Guide Qs w/ Ans (100 Questions)
EXAM SET 1
1. A client is admitted to the intensive care unit (ICU) after a colon resection with the
formation of a loop colostomy. The nurse determines the client's abdominal dressing is
clean and dry. Vital signs are temperature 100°F, heart rate 132 beats/minute, blood
pressure 88/65 mmHg, and urine output 10 mL/hour. Which intervention should the nurse
implement?
A. Give a fluid challenge of 500 mL IV bolus
B. Notify the provider of the fever
C. Assess the colostomy for patency
D. Increase the oxygen flow rate
Correct Answer: A
Rationale: The client's vital signs indicate hypovolemic shock (tachycardia HR 132,
hypotension BP 88/65, and oliguria urine output 10 mL/hr) likely due to fluid loss after
,colon resection surgery. The first-line treatment for hypovolemic shock is rapid fluid
resuscitation to improve blood pressure and restore kidney perfusion. A 500 mL IV fluid
bolus is the priority intervention. While the low-grade fever (100°F) and oxygenation are
concerns, they are secondary to the immediate circulatory collapse. The colostomy
assessment can wait until hemodynamics are stabilized. Hypovolemic shock from surgical
fluid loss requires immediate volume replacement to prevent further organ damage. The
urine output of 10 mL/hr indicates severe kidney hypoperfusion requiring immediate
correction. Prompt fluid resuscitation can reverse the shock state and prevent acute kidney
injury. The provider should be notified after initiating the fluid bolus, as this is an
emergency situation requiring additional interventions.
2. (Priority Nursing Interventions — Select All That Apply) Which interventions are priority
for a client who collapsed while mowing the lawn with heat stroke, core temp 109.4°F,
now in ICU with HR 79, BP 118/75, RR 14, O2 94%, temp 102.2°F, opens eyes only to
painful stimuli, dark yellow urine 16 mL, pupils 4 mm reactive, central line dressing soaked
with blood, ecchymosis under BP cuff?
A. Continue rapid cooling (ice packs, cooling blanket)
B. Monitor and manage central line bleeding
C. Monitor urine output hourly and notify provider if <30 mL/hr
D. Frequent neurological checks
E. Administer acetaminophen for fever
Correct Answers: A, B, C, D
Rationale: This client has heat stroke with rhabdomyolysis and coagulopathy. All selected
interventions are priorities:
A: Continued cooling is essential as temp remains elevated at 102.2°F (residual
hyperthermia). Heat stroke is a medical emergency characterized by core temperature
>104°F with central nervous system dysfunction. The client's temperature of 102.2°F
indicates ongoing hyperthermia requiring active cooling measures such as ice packs,
cooling blankets, and cold IV fluids to prevent further neurological damage. Cooling
should continue until core temperature reaches 101°F to avoid overcooling.
B: Central line bleeding indicates coagulopathy from heat-induced tissue injury and
requires immediate management. Heat stroke causes endothelial damage and activation
of the coagulation cascade, leading to disseminated intravascular coagulation (DIC). The
soaked dressing requires immediate assessment and intervention to prevent significant
blood loss and hemorrhagic complications.
C: Oliguria (16 mL dark yellow urine) signals acute kidney injury from rhabdomyolysis;
hourly monitoring is critical. Dark yellow urine with low output indicates myoglobinuria
from muscle breakdown, which can cause acute tubular necrosis. The threshold of 30 mL/hr
is the minimum acceptable urine output; values below this require provider notification and
possible fluid resuscitation or diuretic therapy.
,D: Altered mental status (opens eyes to pain only) requires frequent neuro checks to
monitor for brain injury progression. Heat stroke causes cerebral edema and neuronal
damage; Glasgow Coma Scale should be monitored hourly to detect deterioration
requiring intracranial pressure management or additional interventions.
E: Is incorrect: Acetaminophen is ineffective for heat stroke fever and may worsen liver
stress. Heat stroke hyperthermia is caused by environmental heat exposure and muscle
breakdown, not hypothalamic resetting. Antipyretics are ineffective and can cause
hepatotoxicity in the presence of rhabdomyolysis-induced liver dysfunction.
3. (Highlight Assessment Findings — Select All That Apply) HISTORY AND PHYSICAL: A
28-year-old male collapsed while mowing the lawn. Assessment findings: HR 79, BP
118/75, RR 14, O2 sat 94%, temp 102.2°F. Client opens eyes to painful stimuli, does not
follow commands. Skin pink and warm. 16 mL dark yellow urine from condom catheter.
Pupils 4 mm reactive. Central line dressing soaked with blood. Ecchymosis under BP cuff.
Which findings require immediate attention?
A. Temperature 102.2°F
B. Opens eyes only to painful stimuli, does not follow commands
C. 16 mL dark yellow urine
D. Central line dressing soaked with blood
E. Ecchymosis under BP cuff
F. Pupils 4 mm reactive
Correct Answers: A, B, C, D, E
Rationale: All findings except F require immediate attention:
A: Temperature 102.2°F indicates ongoing hyperthermia requiring continued cooling
measures. This temperature remains dangerously elevated and can cause further
neurological damage, protein denaturation, and multi-organ failure. Immediate cooling
interventions must continue until temperature is controlled.
B: Opens eyes only to painful stimuli indicates severe neurological impairment with GCS of
approximately 8 or less. This Glasgow Coma Scale finding indicates significant brain
dysfunction from heat stroke and requires frequent neurological monitoring, possible
intracranial pressure management, and airway protection.
C: 16 mL dark yellow urine indicates oliguria with concentrated urine, suggesting
rhabdomyolysis with myoglobinuria and acute kidney injury. This finding requires
immediate intervention including fluid resuscitation, urine output monitoring, and possible
renal replacement therapy.
D: Central line dressing soaked with blood indicates active bleeding from coagulopathy,
likely DIC. This requires immediate assessment of the site, pressure application, possible
suture placement, and notification of the provider for coagulation studies and blood
product replacement.
, E: Ecchymosis under BP cuff indicates coagulopathy with spontaneous bleeding and
requires immediate attention. This finding confirms the presence of DIC and requires
comprehensive coagulation assessment and management.
F: Pupils 4 mm reactive is a normal finding and does not require immediate intervention.
Bilateral reactive pupils suggest intact brainstem function, though this does not rule out
cerebral injury.
4. A client is 24 hours post-operative from a permanent pacemaker insertion. The nurse
observes a pacemaker spike before each QRS complex on the telemetry monitor. Which
intervention should the nurse implement?
A. Document paced rhythm
B. Prepare for transcutaneous pacing
C. Notify the provider of pacemaker malfunction
D. Administer atropine 0.5 mg IV
Correct Answer: A
Rationale: Spike before every QRS = ventricularly paced rhythm = pacemaker working
normally. A pacemaker spike is the electrical stimulus from the generator, and a spike
followed by a QRS complex indicates successful ventricular capture. This is the expected
finding post-permanent pacemaker insertion. The nurse should document the paced rhythm
and continue to monitor for capture loss (spike without QRS). No intervention is needed as
this represents normal pacemaker function. The presence of a spike before each QRS with
a corresponding ventricular response demonstrates appropriate sensing and capture of
the pacemaker. Transcutaneous pacing is only indicated for symptomatic bradycardia or
pacemaker failure. Pacemaker malfunction would be indicated by failure to capture
(spikes without QRS), failure to sense (spikes on T waves or inappropriate timing), or
failure to pace (no spikes when needed). Atropine is not indicated for a paced rhythm as
the pacemaker is functioning appropriately.
5. A 59-year-old female with hyperosmolar hyperglycemic syndrome (HHS) developed
abdominal pain several days ago and nausea starting yesterday. This morning she was
extremely drowsy and confused at work. Her coworker brought her to the hospital. Based
on laboratory values at 1600, which are appropriate nursing actions? (Select All That
Apply)
LABS:
- Blood Glucose: 250 mg/dL (Normal: 74-106)
- Sodium (Na+): 152 mEq/L (Normal: 135-145)
- Potassium (K+): 3.2 mEq/L (Normal: 3.5-5.0)
- Bicarbonate (HCO3-): 20 mEq/L (Normal: 22-26)
