Exam (SU 2026) Questions
and Correct Answers with
Rationale
Question 1
A nurse is assessing a client with suspected hypovolemic shock.
Which assessment finding should the nurse recognize as an early
indicator?
A. Bradycardia
B. Tachycardia
C. Hypertension
D. Bounding pulses
Answer: B. Tachycardia
Rationale: Tachycardia is an early compensatory response to
decreased circulating blood volume. The body increases heart
rate to maintain cardiac output. Bradycardia is a late, ominous
sign, while hypotension—not hypertension—develops as shock
progresses.
Question 2
,Which client should the nurse assess first?
A. A client with pneumonia who has an oxygen saturation of
88% on room air
B. A client requesting pain medication rated 8/10
C. A client awaiting discharge instructions
D. A client with diabetes requesting lunch
Answer: A. A client with pneumonia who has an oxygen
saturation of 88% on room air
Rationale: Airway and breathing take priority (ABCs). An
oxygen saturation of 88% indicates hypoxemia requiring
immediate assessment and intervention.
Question 3
A client with heart failure is prescribed furosemide. Which
electrolyte imbalance is the nurse most concerned about?
A. Hypernatremia
B. Hyperkalemia
C. Hypokalemia
D. Hypercalcemia
Answer: C. Hypokalemia
Rationale: Furosemide is a loop diuretic that increases
potassium excretion, placing the client at risk for hypokalemia,
which can cause muscle weakness and life-threatening
dysrhythmias.
,Question 4
Which laboratory value should the nurse report immediately?
A. Sodium 139 mEq/L
B. Potassium 2.7 mEq/L
C. Calcium 9.2 mg/dL
D. Magnesium 2.0 mg/dL
Answer: B. Potassium 2.7 mEq/L
Rationale: A potassium level below 3.0 mEq/L significantly
increases the risk for cardiac dysrhythmias and requires prompt
intervention.
Question 5
A nurse is teaching a client taking warfarin. Which statement
indicates correct understanding?
A. "I'll stop eating green vegetables."
B. "I'll keep my intake of green vegetables consistent."
C. "I'll double my dose if I miss one."
D. "I'll take aspirin for headaches."
Answer: B. "I'll keep my intake of green vegetables
consistent."
, Rationale: Vitamin K intake should remain consistent to
maintain therapeutic anticoagulation. Aspirin increases bleeding
risk and should only be taken if approved by the provider.
Question 6
Which assessment finding is most consistent with left-sided
heart failure?
A. Peripheral edema
B. Jugular vein distention
C. Crackles in both lungs
D. Ascites
Answer: C. Crackles in both lungs
Rationale: Left-sided heart failure causes pulmonary
congestion, resulting in crackles, dyspnea, orthopnea, and
pulmonary edema.
Question 7
A client suddenly develops chest pain, dyspnea, and anxiety
after surgery. Which complication is most likely?
A. Pneumonia
B. Pulmonary embolism
C. Atelectasis
D. Pleural effusion