WGU D444
Adult Health 1
Objective Assessment
Exam Questions with Verified Answers
Pass the Exam with Confidence
This comprehensive resource includes:
✓ full version of the Objective Assessment Exam
✓ Each with Actual Exam Questions with Verified Answers
✓ designed to help you ace the exam.
✓ Anyone who needs clear, concise guidance to pass
,Table of Contents
WGU D444 OA Exam......................................................................... 2
D444 New OA Study Guide ............................................................. 38
WGU D444 OA Exam
QUESTION 1 | Multiple Choice
Which instruction should the nurse include in the discharge teaching plan for an
adult client with hypernatremia?
A. Review food labels for sodium content
B. Increase fluid intake to 3 liters per day
C. Weigh daily and report weight gains
D. Avoid potassium-rich foods
✓ CORRECT ANSWER: A
EXPERT RATIONALE: Hypernatremia is defined as a serum sodium level greater than 145
mEq/L. The condition most commonly results from inadequate fluid intake, excessive
sodium intake, or impaired thirst mechanisms. Teaching the client to review food labels for
sodium content (A) is essential for identifying hidden sodium in processed foods and
maintaining sodium restriction. While increasing fluid intake (B) may be appropriate in some
cases of hypernatremia caused by dehydration, it is not universally recommended without
provider guidance, especially in clients with cardiac or renal compromise. Daily weights (C)
are more relevant for fluid overload states such as heart failure. Avoiding potassium-rich
foods (D) is unrelated to sodium management and is not appropriate teaching for
hypernatremia.
QUESTION 2 | Multiple Choice
A client who is experiencing respiratory distress is admitted with respiratory
acidosis. Which pathophysiological process supports the client's respiratory
acidosis?
A. Excessive bicarbonate (HCO₃⁻) has been lost through the kidneys
,B. High levels of carbon dioxide have accumulated in the blood
C. The kidneys are retaining too much hydrogen ion
D. Hyperventilation has caused excessive CO₂ excretion
✓ CORRECT ANSWER: B
EXPERT RATIONALE: Respiratory acidosis is defined as a pH less than 7.35 with an
elevated PaCO₂ greater than 45 mm Hg. The primary defect is alveolar hypoventilation,
which results in the retention of carbon dioxide (CO₂). CO₂ combines with water (H₂O) to
form carbonic acid (H₂CO₃), which dissociates into hydrogen ions (H⁺) and bicarbonate
(HCO₃⁻), thereby lowering the pH. Option A describes metabolic acidosis caused by
bicarbonate loss. Option C describes renal compensation mechanisms, not the primary
cause of respiratory acidosis. Option D describes respiratory alkalosis, which is the opposite
condition caused by excessive CO₂ elimination.
QUESTION 3 | Multiple Choice (Prioritization)
A client with multiple sclerosis (MS) fell while walking to the bathroom. Upon transfer
to the intensive care unit, the client is confused and has had projectile vomiting
twice. Which intervention should the nurse implement first?
A. Complete head-to-toe neurological assessment
B. Insert a nasogastric tube for gastric decompression
C. Administer an antiemetic medication
D. Obtain a CT scan of the head immediately
✓ CORRECT ANSWER: A
EXPERT RATIONALE: The client with MS who fell and now presents with confusion and
projectile vomiting is exhibiting signs consistent with increased intracranial pressure (ICP),
possibly due to a traumatic brain injury from the fall. According to nursing process
prioritization, the nurse must first complete a comprehensive head-to-toe neurological
assessment (A) to establish baseline data, identify the extent of neurological compromise,
and determine the urgency of subsequent interventions. While a CT scan (D) will likely be
needed, assessment must precede diagnostic testing. Inserting an NG tube (B) and
administering antiemetics (C) are interventions that may follow the initial assessment but
are not the first action. The neurological assessment provides critical data that guides all
subsequent care decisions.
QUESTION 4 | Multiple Choice
A client has been administered lactulose for several days. Which therapeutic
response should the nurse expect for a client with hepatic encephalopathy?
, A. Decreased serum ammonia levels
B. Improved mental status
C. Resolution of jaundice
D. Increased urine output
✓ CORRECT ANSWER: B
EXPERT RATIONALE: Lactulose is a non-absorbable synthetic disaccharide used to treat
hepatic encephalopathy. It works by acidifying the colonic contents, which converts
ammonia (NH₃) to ammonium (NH₄⁺), a non-absorbable form that is excreted in the stool.
While decreased serum ammonia (A) is the underlying physiological mechanism, the
primary therapeutic response that the nurse monitors and expects is improved mental
status (B), as this directly reflects clinical improvement in the client's condition. Hepatic
encephalopathy manifests as confusion, asterixis, altered level of consciousness, and
potential progression to coma; therefore, mental status is the key outcome measure.
Lactulose does not resolve jaundice (C), which is related to bilirubin metabolism and liver
dysfunction. It does not increase urine output (D).
QUESTION 5 | Multiple Choice
Which approach is best for the nurse to use when directing a client with Huntington's
disease to the hospital cafeteria?
A. Provide written directions with a map
B. Escort the client to the cafeteria
C. Ask a family member to accompany the client
D. Give verbal directions using landmarks
✓ CORRECT ANSWER: B
EXPERT RATIONALE: Huntington's disease is an autosomal dominant, progressive
neurodegenerative disorder characterized by chorea (involuntary movements), cognitive
decline, and psychiatric disturbances. Clients with Huntington's disease experience
significant difficulties with spatial orientation, memory retention, and motor coordination. The
safest and most effective approach is for the nurse to personally escort the client (B) to
ensure safe arrival, as the client may become disoriented, forget directions, or be unable to
navigate due to motor impairments. Written directions (A) may be difficult to follow due to
cognitive impairment and visual disturbances. Verbal directions (D) may be forgotten or
misunderstood. While family involvement (C) is supportive, the nurse retains professional
responsibility for ensuring the client's safe navigation within the healthcare facility.
QUESTION 6 | Multiple Choice
Adult Health 1
Objective Assessment
Exam Questions with Verified Answers
Pass the Exam with Confidence
This comprehensive resource includes:
✓ full version of the Objective Assessment Exam
✓ Each with Actual Exam Questions with Verified Answers
✓ designed to help you ace the exam.
✓ Anyone who needs clear, concise guidance to pass
,Table of Contents
WGU D444 OA Exam......................................................................... 2
D444 New OA Study Guide ............................................................. 38
WGU D444 OA Exam
QUESTION 1 | Multiple Choice
Which instruction should the nurse include in the discharge teaching plan for an
adult client with hypernatremia?
A. Review food labels for sodium content
B. Increase fluid intake to 3 liters per day
C. Weigh daily and report weight gains
D. Avoid potassium-rich foods
✓ CORRECT ANSWER: A
EXPERT RATIONALE: Hypernatremia is defined as a serum sodium level greater than 145
mEq/L. The condition most commonly results from inadequate fluid intake, excessive
sodium intake, or impaired thirst mechanisms. Teaching the client to review food labels for
sodium content (A) is essential for identifying hidden sodium in processed foods and
maintaining sodium restriction. While increasing fluid intake (B) may be appropriate in some
cases of hypernatremia caused by dehydration, it is not universally recommended without
provider guidance, especially in clients with cardiac or renal compromise. Daily weights (C)
are more relevant for fluid overload states such as heart failure. Avoiding potassium-rich
foods (D) is unrelated to sodium management and is not appropriate teaching for
hypernatremia.
QUESTION 2 | Multiple Choice
A client who is experiencing respiratory distress is admitted with respiratory
acidosis. Which pathophysiological process supports the client's respiratory
acidosis?
A. Excessive bicarbonate (HCO₃⁻) has been lost through the kidneys
,B. High levels of carbon dioxide have accumulated in the blood
C. The kidneys are retaining too much hydrogen ion
D. Hyperventilation has caused excessive CO₂ excretion
✓ CORRECT ANSWER: B
EXPERT RATIONALE: Respiratory acidosis is defined as a pH less than 7.35 with an
elevated PaCO₂ greater than 45 mm Hg. The primary defect is alveolar hypoventilation,
which results in the retention of carbon dioxide (CO₂). CO₂ combines with water (H₂O) to
form carbonic acid (H₂CO₃), which dissociates into hydrogen ions (H⁺) and bicarbonate
(HCO₃⁻), thereby lowering the pH. Option A describes metabolic acidosis caused by
bicarbonate loss. Option C describes renal compensation mechanisms, not the primary
cause of respiratory acidosis. Option D describes respiratory alkalosis, which is the opposite
condition caused by excessive CO₂ elimination.
QUESTION 3 | Multiple Choice (Prioritization)
A client with multiple sclerosis (MS) fell while walking to the bathroom. Upon transfer
to the intensive care unit, the client is confused and has had projectile vomiting
twice. Which intervention should the nurse implement first?
A. Complete head-to-toe neurological assessment
B. Insert a nasogastric tube for gastric decompression
C. Administer an antiemetic medication
D. Obtain a CT scan of the head immediately
✓ CORRECT ANSWER: A
EXPERT RATIONALE: The client with MS who fell and now presents with confusion and
projectile vomiting is exhibiting signs consistent with increased intracranial pressure (ICP),
possibly due to a traumatic brain injury from the fall. According to nursing process
prioritization, the nurse must first complete a comprehensive head-to-toe neurological
assessment (A) to establish baseline data, identify the extent of neurological compromise,
and determine the urgency of subsequent interventions. While a CT scan (D) will likely be
needed, assessment must precede diagnostic testing. Inserting an NG tube (B) and
administering antiemetics (C) are interventions that may follow the initial assessment but
are not the first action. The neurological assessment provides critical data that guides all
subsequent care decisions.
QUESTION 4 | Multiple Choice
A client has been administered lactulose for several days. Which therapeutic
response should the nurse expect for a client with hepatic encephalopathy?
, A. Decreased serum ammonia levels
B. Improved mental status
C. Resolution of jaundice
D. Increased urine output
✓ CORRECT ANSWER: B
EXPERT RATIONALE: Lactulose is a non-absorbable synthetic disaccharide used to treat
hepatic encephalopathy. It works by acidifying the colonic contents, which converts
ammonia (NH₃) to ammonium (NH₄⁺), a non-absorbable form that is excreted in the stool.
While decreased serum ammonia (A) is the underlying physiological mechanism, the
primary therapeutic response that the nurse monitors and expects is improved mental
status (B), as this directly reflects clinical improvement in the client's condition. Hepatic
encephalopathy manifests as confusion, asterixis, altered level of consciousness, and
potential progression to coma; therefore, mental status is the key outcome measure.
Lactulose does not resolve jaundice (C), which is related to bilirubin metabolism and liver
dysfunction. It does not increase urine output (D).
QUESTION 5 | Multiple Choice
Which approach is best for the nurse to use when directing a client with Huntington's
disease to the hospital cafeteria?
A. Provide written directions with a map
B. Escort the client to the cafeteria
C. Ask a family member to accompany the client
D. Give verbal directions using landmarks
✓ CORRECT ANSWER: B
EXPERT RATIONALE: Huntington's disease is an autosomal dominant, progressive
neurodegenerative disorder characterized by chorea (involuntary movements), cognitive
decline, and psychiatric disturbances. Clients with Huntington's disease experience
significant difficulties with spatial orientation, memory retention, and motor coordination. The
safest and most effective approach is for the nurse to personally escort the client (B) to
ensure safe arrival, as the client may become disoriented, forget directions, or be unable to
navigate due to motor impairments. Written directions (A) may be difficult to follow due to
cognitive impairment and visual disturbances. Verbal directions (D) may be forgotten or
misunderstood. While family involvement (C) is supportive, the nurse retains professional
responsibility for ensuring the client's safe navigation within the healthcare facility.
QUESTION 6 | Multiple Choice
