Nokea
The client diagnosed with a deep vein thrombosis (DVT) is prescribed a heparin drip. The solution is 40,000 units in 500 mL of D5W. The health-care provider ordered the client to receive 1,200 units per hour. At which rate should the nurse set the IV pump?
Correct Answer: 15
Rationale: Heparin concentration: 40,000 units/500 mL = 80 units/mL. Dose: 1,200 units/hr ÷ 80 units/mL = 15 mL/hr. Set pump to 15 mL/hr.
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The client with heart failure asks why they need to limit sodium intake. What is the best response?
- A. Sodium causes your heart to beat faster.
- B. Sodium makes your body retain fluid.
- C. Sodium increases your blood sugar.
- D. Sodium weakens your heart muscle.
Correct Answer: B
Rationale: Sodium promotes fluid retention, which increases cardiac workload in heart failure.
The client with hypertension asks why they need to limit stress. What is the best response?
- A. Stress causes fluid retention.
- B. Stress increases your heart rate and blood pressure.
- C. Stress reduces oxygen to your heart.
- D. Stress weakens your immune system.
Correct Answer: B
Rationale: Stress activates the sympathetic nervous system, increasing heart rate and blood pressure.
Which assessment finding in a client with endocarditis requires immediate action?
- A. Splinter hemorrhages under nails
- B. Mild joint pain
- C. New heart murmur
- D. Fatigue after activity
Correct Answer: C
Rationale: A new heart murmur may indicate valve damage or worsening infection, requiring urgent evaluation.
Which assessment finding in a client with a pacemaker requires immediate action? Select all that apply.
- A. Heart rate of 50 beats per minute
- B. Pain at the insertion site
- C. Fever of 101°F
- D. Hiccups that persist
- E. Swelling at the pacemaker site
- F. Mild bruising at the site
Correct Answer: A,C,D,E
Rationale: Low heart rate, fever, persistent hiccups, and swelling suggest pacemaker malfunction or infection, requiring immediate attention.
Which electrolyte imbalance should the nurse monitor in a client with arrhythmias?
- A. Calcium
- B. Potassium
- C. Sodium
- D. Magnesium
Correct Answer: B
Rationale: Potassium imbalances can trigger or worsen arrhythmias by affecting cardiac cell membrane potential.