furosemide. Which finding requires immediate
intervention?
A. Serum potassium level of 3.1 mEq/L
B. Blood pressure of 110/70 mmHg
C. Output greater than intake
D. Presence of crackles in lower lobes
Answer: A
Rationale: A potassium level of 3.1 mEq/L is dangerously
low and can lead to dysrhythmias. Furosemide is a loop
diuretic that causes potassium loss. The other findings are
expected.
✅ 2. Which client should the LPN/LVN assess first?
A. A post-op client with a blood pressure of 90/60
B. A diabetic client with a blood glucose of 210 mg/dL
C. A client with chronic pain rating it as 7/10
D. A client with a potassium level of 5.1 mEq/L
Answer: A
Rationale: A post-op client with hypotension could be
bleeding or in shock. This is a priority using the ABCs
(Airway, Breathing, Circulation).
,✅ 3. Which instruction should the nurse give a client
prescribed nitroglycerin sublingual tablets?
A. "Swallow the pill whole."
B. "Take with food or milk."
C. "Place it under your tongue and let it dissolve."
D. "Take only after meals."
Answer: C
Rationale: Nitroglycerin should be placed under the
tongue to dissolve for rapid absorption and action.
✅ 4. A nurse prepares to administer digoxin. The
apical heart rate is 56 bpm. What action is
appropriate?
A. Administer the medication
B. Give half the dose
C. Hold the dose and notify the RN
D. Recheck the pulse in 30 minutes
Answer: C
Rationale: Hold digoxin if apical pulse is <60 bpm and
notify the RN or provider. It can cause bradycardia.
✅ 5. A client with COPD reports dyspnea. Which
position is best?
A. Supine with head flat
B. High Fowler’s position
, C. Trendelenburg position
D. Left lateral Sims’
Answer: B
Rationale: High Fowler’s allows lung expansion and
eases breathing.
✅ 6. A client has a new prescription for warfarin.
Which statement indicates understanding?
A. “I will eat more leafy greens.”
B. “I should use a soft toothbrush.”
C. “I can take aspirin for headaches.”
D. “There is no need for blood tests.”
Answer: B
Rationale: Warfarin increases bleeding risk; a soft
toothbrush prevents gum bleeding. Avoid leafy greens
(vitamin K), aspirin, and monitor INR.
✅ 7. A child with asthma uses an albuterol inhaler.
What is a common side effect?
A. Bradycardia
B. Tremors
C. Drowsiness
D. Constipation