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When the client asks the nurse how cholesterol acts as a cardiac risk factor, what is the best explanation?
- A. Excess fat in the blood expands the circulating blood volume.
- B. Excess fat in the blood thickens the lining of the arteries.
- C. Excess fat in the blood causes slower blood clotting.
- D. Excess fat in the blood stimulates the heart to beat faster.
Correct Answer: B
Rationale: High cholesterol contributes to atherosclerosis, where excess fat (lipids) deposits thicken and harden the arterial walls, narrowing the lumen and increasing cardiac risk.
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As part of the discharge instructions, the nurse correctly instructs the client that which symptom is a sign of artificial pacemaker malfunction?
- A. Tingling in the chest area
- B. Dizziness during activity
- C. Pain radiating to the arm
- D. Tenderness beneath the skin
Correct Answer: B
Rationale: Dizziness during activity may indicate pacemaker failure to maintain adequate heart rate.
If the client develops digoxin toxicity, what would the nurse expect the client to exhibit?
- A. Anorexia and nausea
- B. Dizziness and insomnia
- C. Pinpoint pupils and double vision
- D. Ringing in the ears and itchy skin
Correct Answer: A
Rationale: Digoxin toxicity commonly causes anorexia, nausea, and vomiting due to gastrointestinal effects.
During cardiopulmonary resuscitation (CPR), the nurse compresses the chest of an adult victim at which rate?
- A. No less than 15 compressions per minute
- B. No less than 40 compressions per minute
- C. No less than 80 compressions per minute
- D. No less than 100 compressions per minute
Correct Answer: D
Rationale: Adult CPR requires 100-120 compressions per minute to restore circulation effectively.
After the coronary arteriogram, the nurse must keep the client flat in bed with the affected leg in which position?
- A. Extended
- B. Flexed
- C. Abducted
- D. Adducted
Correct Answer: A
Rationale: Keeping the leg extended prevents bleeding or hematoma at the femoral artery puncture site by minimizing movement.
Digoxin (Lanoxin) and furosemide (Lasix) are ordered for a client who has congestive heart failure. Which of the following would the nurse also expect to be ordered for this client?
- A. Potassium
- B. Calcium
- C. Aspirin
- D. Coumadin
Correct Answer: A
Rationale: Furosemide, a diuretic, can cause potassium loss, leading to hypokalemia, which increases the risk of digoxin toxicity. Potassium supplements are often ordered to maintain normal levels.