Pass NSG 550 Exams 1–3 – Wilkes Diagnostic
Reasoning Exam Questions and Correct
Answers (Verified Answers) Plus Rationale
2027 Q&A| Instant Download Pdf
1. A nurse practitioner evaluates a patient with fatigue, polyuria, and
polydipsia. Which finding would most strongly support a diagnosis
of diabetes mellitus?
A. Fasting blood glucose of 92 mg/dL
B. Hemoglobin A1c of 5.2%
C. Random blood glucose of 248 mg/dL with classic symptoms
D. Serum sodium of 138 mEq/L
Answer: C. Random blood glucose of 248 mg/dL with classic
symptoms
Rationale: A markedly elevated random plasma glucose in a patient
with classic symptoms such as polyuria and polydipsia strongly supports
diabetes mellitus. Diagnostic reasoning requires integrating the
,patient's symptoms with objective laboratory findings rather than
interpreting an isolated value without clinical context.
2. During diagnostic reasoning, which step involves generating a list
of possible conditions that could explain the patient's
presentation?
A. Data collection
B. Differential diagnosis generation
C. Treatment implementation
D. Outcome evaluation
Answer: B. Differential diagnosis generation
Rationale: Generating a differential diagnosis involves identifying
multiple plausible explanations for the patient's signs, symptoms,
history, and examination findings. This prevents premature closure and
encourages systematic consideration of competing diagnoses.
3. A patient reports sudden unilateral weakness and difficulty
speaking that began 45 minutes ago. What is the priority
diagnostic consideration?
A. Migraine headache
B. Hypoglycemia
,C. Acute ischemic stroke
D. Peripheral neuropathy
Answer: C. Acute ischemic stroke
Rationale: Sudden focal neurologic deficits, particularly unilateral
weakness and aphasia, are classic warning signs of acute stroke. The
abrupt onset makes an emergent cerebrovascular process a priority,
and rapid evaluation is essential because time-sensitive treatment may
be available.
4. Which component of the patient history is most useful for
determining whether chest pain is potentially cardiac?
A. Preferred sleeping position
B. Relationship of pain to exertion
C. Childhood immunization history
D. Usual dietary preferences
Answer: B. Relationship of pain to exertion
Rationale: Chest discomfort that occurs with exertion and improves with
rest raises concern for myocardial ischemia. Diagnostic reasoning uses
characteristics such as location, quality, duration, provoking factors,
relieving factors, and associated symptoms to distinguish potential
causes.
, 5. A patient presents with fever, cough, dyspnea, and pleuritic chest
pain. Which additional finding would most strongly support
pneumonia?
A. Clear bilateral breath sounds
B. Focal crackles and bronchial breath sounds
C. Symmetric peripheral pulses
D. Normal respiratory rate
Answer: B. Focal crackles and bronchial breath sounds
Rationale: Focal adventitious breath sounds and bronchial breath
sounds over an affected region can occur when alveolar air is replaced
by inflammatory exudate, as in pneumonia. These findings should be
interpreted alongside symptoms, vital signs, and potentially imaging
findings.
6. Which question best demonstrates an open-ended approach to
symptom assessment?
A. “Is the pain sharp?”
B. “Does the pain occur after eating?”
C. “Can you describe what the pain feels like?”
D. “Is the pain a 7 out of 10?”
Answer: C. “Can you describe what the pain feels like?”
Reasoning Exam Questions and Correct
Answers (Verified Answers) Plus Rationale
2027 Q&A| Instant Download Pdf
1. A nurse practitioner evaluates a patient with fatigue, polyuria, and
polydipsia. Which finding would most strongly support a diagnosis
of diabetes mellitus?
A. Fasting blood glucose of 92 mg/dL
B. Hemoglobin A1c of 5.2%
C. Random blood glucose of 248 mg/dL with classic symptoms
D. Serum sodium of 138 mEq/L
Answer: C. Random blood glucose of 248 mg/dL with classic
symptoms
Rationale: A markedly elevated random plasma glucose in a patient
with classic symptoms such as polyuria and polydipsia strongly supports
diabetes mellitus. Diagnostic reasoning requires integrating the
,patient's symptoms with objective laboratory findings rather than
interpreting an isolated value without clinical context.
2. During diagnostic reasoning, which step involves generating a list
of possible conditions that could explain the patient's
presentation?
A. Data collection
B. Differential diagnosis generation
C. Treatment implementation
D. Outcome evaluation
Answer: B. Differential diagnosis generation
Rationale: Generating a differential diagnosis involves identifying
multiple plausible explanations for the patient's signs, symptoms,
history, and examination findings. This prevents premature closure and
encourages systematic consideration of competing diagnoses.
3. A patient reports sudden unilateral weakness and difficulty
speaking that began 45 minutes ago. What is the priority
diagnostic consideration?
A. Migraine headache
B. Hypoglycemia
,C. Acute ischemic stroke
D. Peripheral neuropathy
Answer: C. Acute ischemic stroke
Rationale: Sudden focal neurologic deficits, particularly unilateral
weakness and aphasia, are classic warning signs of acute stroke. The
abrupt onset makes an emergent cerebrovascular process a priority,
and rapid evaluation is essential because time-sensitive treatment may
be available.
4. Which component of the patient history is most useful for
determining whether chest pain is potentially cardiac?
A. Preferred sleeping position
B. Relationship of pain to exertion
C. Childhood immunization history
D. Usual dietary preferences
Answer: B. Relationship of pain to exertion
Rationale: Chest discomfort that occurs with exertion and improves with
rest raises concern for myocardial ischemia. Diagnostic reasoning uses
characteristics such as location, quality, duration, provoking factors,
relieving factors, and associated symptoms to distinguish potential
causes.
, 5. A patient presents with fever, cough, dyspnea, and pleuritic chest
pain. Which additional finding would most strongly support
pneumonia?
A. Clear bilateral breath sounds
B. Focal crackles and bronchial breath sounds
C. Symmetric peripheral pulses
D. Normal respiratory rate
Answer: B. Focal crackles and bronchial breath sounds
Rationale: Focal adventitious breath sounds and bronchial breath
sounds over an affected region can occur when alveolar air is replaced
by inflammatory exudate, as in pneumonia. These findings should be
interpreted alongside symptoms, vital signs, and potentially imaging
findings.
6. Which question best demonstrates an open-ended approach to
symptom assessment?
A. “Is the pain sharp?”
B. “Does the pain occur after eating?”
C. “Can you describe what the pain feels like?”
D. “Is the pain a 7 out of 10?”
Answer: C. “Can you describe what the pain feels like?”
