NUR 254 Exam 3 Questions & Answers | Comprehensive
Study Guide|100%Verified and Updated|Newest
Version |Graded A +
Question 1
A patient with left-sided heart failure is most likely to exhibit which
symptom?
A. Peripheral edema
B. Jugular vein distention
C. Pulmonary crackles
D. Hepatomegaly
Correct Answer: C
Rationale:
Left-sided heart failure leads to pulmonary congestion, resulting in
crackles, dyspnea, and orthopnea. Right-sided failure causes
peripheral edema and JVD.
Question 2
Which lab value is most concerning in a patient taking furosemide?
A. Sodium 140 mEq/L
B. Potassium 2.9 mEq/L
C. Chloride 101 mEq/L
D. Glucose 100 mg/dL
Correct Answer: B
Rationale:
Furosemide is a loop diuretic that can cause hypokalemia,
increasing risk for arrhythmias.
,Question 3
A patient with atrial fibrillation is at highest risk for:
A. Hypotension
B. Stroke
C. Bradycardia
D. Ventricular fibrillation
Correct Answer: B
Rationale:
Blood pooling in the atria increases clot formation risk, which can
embolize to the brain causing stroke.
Question 4
Which ECG change is associated with hyperkalemia?
A. Flattened T waves
B. U waves
C. Peaked T waves
D. Prolonged QT interval
Correct Answer: C
Rationale:
Hyperkalemia causes tall, peaked T waves and can progress to
widened QRS and cardiac arrest.
Question 5
A patient with COPD should receive oxygen therapy cautiously
because:
A. It increases heart rate
B. It suppresses hypoxic drive
C. It causes acidosis
D. It increases CO₂ elimination
Correct Answer: B
, Rationale:
COPD patients rely on hypoxic drive for respiration; excessive
oxygen can suppress breathing.
Question 6
Which finding indicates diabetic ketoacidosis (DKA)?
A. Blood glucose 60 mg/dL
B. Fruity breath odor
C. Bradycardia
D. Alkalosis
Correct Answer: B
Rationale:
DKA produces ketones, causing fruity breath odor, hyperglycemia,
metabolic acidosis, and Kussmaul respirations
Question 7
Which medication is first-line for anaphylaxis?
A. Diphenhydramine
B. Albuterol
C. Epinephrine
D. Prednisone
Correct Answer: C
Rationale:
Epinephrine rapidly reverses airway swelling and hypotension in
anaphylaxis.
Question 8
A patient with acute kidney injury should have which priority
assessment?
A. Bowel sounds
B. Urine output
C. Vision changes
D. Skin turgor only
Study Guide|100%Verified and Updated|Newest
Version |Graded A +
Question 1
A patient with left-sided heart failure is most likely to exhibit which
symptom?
A. Peripheral edema
B. Jugular vein distention
C. Pulmonary crackles
D. Hepatomegaly
Correct Answer: C
Rationale:
Left-sided heart failure leads to pulmonary congestion, resulting in
crackles, dyspnea, and orthopnea. Right-sided failure causes
peripheral edema and JVD.
Question 2
Which lab value is most concerning in a patient taking furosemide?
A. Sodium 140 mEq/L
B. Potassium 2.9 mEq/L
C. Chloride 101 mEq/L
D. Glucose 100 mg/dL
Correct Answer: B
Rationale:
Furosemide is a loop diuretic that can cause hypokalemia,
increasing risk for arrhythmias.
,Question 3
A patient with atrial fibrillation is at highest risk for:
A. Hypotension
B. Stroke
C. Bradycardia
D. Ventricular fibrillation
Correct Answer: B
Rationale:
Blood pooling in the atria increases clot formation risk, which can
embolize to the brain causing stroke.
Question 4
Which ECG change is associated with hyperkalemia?
A. Flattened T waves
B. U waves
C. Peaked T waves
D. Prolonged QT interval
Correct Answer: C
Rationale:
Hyperkalemia causes tall, peaked T waves and can progress to
widened QRS and cardiac arrest.
Question 5
A patient with COPD should receive oxygen therapy cautiously
because:
A. It increases heart rate
B. It suppresses hypoxic drive
C. It causes acidosis
D. It increases CO₂ elimination
Correct Answer: B
, Rationale:
COPD patients rely on hypoxic drive for respiration; excessive
oxygen can suppress breathing.
Question 6
Which finding indicates diabetic ketoacidosis (DKA)?
A. Blood glucose 60 mg/dL
B. Fruity breath odor
C. Bradycardia
D. Alkalosis
Correct Answer: B
Rationale:
DKA produces ketones, causing fruity breath odor, hyperglycemia,
metabolic acidosis, and Kussmaul respirations
Question 7
Which medication is first-line for anaphylaxis?
A. Diphenhydramine
B. Albuterol
C. Epinephrine
D. Prednisone
Correct Answer: C
Rationale:
Epinephrine rapidly reverses airway swelling and hypotension in
anaphylaxis.
Question 8
A patient with acute kidney injury should have which priority
assessment?
A. Bowel sounds
B. Urine output
C. Vision changes
D. Skin turgor only
