Nursing Elites

1. What is the most important action for preventing infection in a client with a central venous catheter?

• A. Changing the catheter dressing every 72 hours.
• B. Flushing the catheter with heparin solution daily.
• C. Ensuring the catheter is clamped when not in use.
• D. Maintaining sterile technique when handling the catheter.

Correct answer: D

Rationale: Maintaining sterile technique when handling a central venous catheter is crucial in preventing infections. This action helps minimize the introduction of pathogens into the catheter site, reducing the risk of contamination and subsequent infection. Changing the catheter dressing every 72 hours, while important, does not directly address the prevention of infection at the insertion site. Flushing the catheter with heparin solution daily helps prevent occlusion but does not primarily focus on infection prevention. Ensuring the catheter is clamped when not in use is essential for preventing air embolism but does not directly relate to infection control.

2. A male client being discharged with a prescription for the bronchodilator theophylline tells the nurse that he understands he is to take three doses of the medication each day. Since timed-release capsules are not available at the time of discharge, which dosing schedule should the LPN advise the client to follow?

• A. 9 a.m., 1 p.m., and 5 p.m.
• B. 8 a.m., 4 p.m., and midnight.
• C. Before breakfast, before lunch, and before dinner.
• D. With breakfast, with lunch, and with dinner.

Correct answer: B

Rationale: The correct dosing schedule for the client to follow is to take the medication at 8 a.m., 4 p.m., and midnight. This timing spaces the doses evenly over the waking hours, ensuring consistent therapeutic levels of the medication. Choice A (9 a.m., 1 p.m., and 5 p.m.) does not evenly distribute the doses throughout the day. Choices C (Before breakfast, before lunch, and before dinner) and D (With breakfast, with lunch, and with dinner) do not provide the required frequency of dosing needed for optimal therapeutic effect.

3. What action should the nurse take to prevent the development of deep vein thrombosis (DVT) in a client who is postoperative day 2 following hip replacement surgery?

• A. Encourage the client to remain on bed rest as much as possible.
• B. Apply sequential compression devices (SCDs) to the client's legs.
• C. Massage the client's legs to improve circulation.
• D. Encourage the client to perform ankle and foot exercises.

Correct answer: B

Rationale: The correct action to prevent DVT in a postoperative client is to apply sequential compression devices (SCDs) to promote venous return. This helps prevent stasis of blood in the lower extremities, reducing the risk of clot formation. Encouraging bed rest (Choice A) may lead to decreased mobility and increase the risk of DVT. Massaging the client's legs (Choice C) is contraindicated in the presence of DVT as it can dislodge a clot. Encouraging ankle and foot exercises (Choice D) may be beneficial for circulation, but SCDs are more effective at preventing DVT in this scenario.

4. While auscultating the anterior chest of a client newly admitted to a medical-surgical unit, a nurse listens to the audio clip of breath sounds through her stethoscope. What type of breath sounds does the nurse hear?

• A. Crackles
• B. Rhonchi
• C. Friction rub
• D. Normal breath sounds

Correct answer: D

Rationale: The correct answer is D: Normal breath sounds. In the scenario described, the nurse hears normal bronchovesicular breath sounds, which are moderate in intensity and resemble blowing as air moves through the larger airways during inspiration and expiration. Crackles (choice A) are typically heard in conditions like heart failure or pneumonia and are not present in this case. Rhonchi (choice B) are low-pitched, continuous sounds often associated with conditions like chronic bronchitis or bronchiectasis. Friction rub (choice C) is a grating sound usually heard in conditions like pleurisy or pericarditis, which is not the case here where normal breath sounds are heard.

5. A healthcare professional is reviewing the laboratory values for a client who has a positive Chvostek's sign. Which of the following laboratory findings should the healthcare professional expect?

• A. Decreased calcium
• B. Elevated potassium
• C. Increased sodium
• D. Low hemoglobin

Correct answer: A

Rationale: A positive Chvostek's sign is a clinical indication of low calcium levels, known as hypocalcemia. This sign is elicited by tapping the facial nerve anterior to the ear, resulting in facial muscle twitching. The correct laboratory finding associated with a positive Chvostek's sign is decreased calcium. Elevated potassium (Choice B) is not typically associated with Chvostek's sign but can be seen in conditions like renal failure. Increased sodium (Choice C) is not directly related to Chvostek's sign and is more commonly associated with hypernatremia. Low hemoglobin (Choice D) is not the expected laboratory finding in a client with a positive Chvostek's sign; instead, it suggests anemia, which is unrelated to this clinical manifestation.

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