Nursing Elites

1. What is the primary reason for applying sequential compression devices (SCDs) to a patient’s legs postoperatively?

• A. To prevent deep vein thrombosis (DVT)
• B. To promote wound healing
• C. To reduce postoperative pain
• D. To maintain body temperature

Correct answer: A

Rationale: The correct answer is A: To prevent deep vein thrombosis (DVT). Sequential compression devices (SCDs) are used postoperatively to prevent DVT by promoting blood circulation in the legs. This helps reduce the risk of blood clots forming in the deep veins of the legs. Choice B, to promote wound healing, is incorrect as SCDs are primarily used for circulatory purposes rather than wound healing. Choice C, to reduce postoperative pain, is incorrect as the primary purpose of SCDs is not pain management but rather prevention of DVT. Choice D, to maintain body temperature, is incorrect as SCDs are not designed for regulating body temperature but for preventing circulatory issues.

2. What is the most effective method to prevent medication errors during administration?

• A. Relying on memory for medication dosages
• B. Using a bar-code medication administration system
• C. Administering medications as quickly as possible to avoid delays
• D. Allowing another individual to administer medications

Correct answer: B

Rationale: Using a bar-code medication administration system is the best method to prevent medication errors during administration. This system verifies medication details electronically, ensuring that the correct medication is given to the right patient. Relying on memory for medication dosages (choice A) is not recommended as it can lead to errors. Administering medications quickly (choice C) may increase the risk of mistakes due to haste. Allowing another individual (choice D) to administer medications does not address the root cause of preventing errors during administration.

3. When teaching a patient about the side effects of a new medication, which teaching method is most effective?

• A. Providing a written pamphlet
• B. Giving verbal instructions only
• C. Demonstrating how to take the medication
• D. Using a combination of verbal, written, and demonstration methods

Correct answer: D

Rationale: The most effective teaching method when educating a patient about the side effects of a new medication is to use a combination of verbal, written, and demonstration methods. This comprehensive approach ensures that the patient receives information through multiple channels, catering to different learning styles. Verbal instructions allow for direct communication, written materials provide a reference for the patient to review later, and demonstrations offer a visual aid that can enhance understanding. Providing a combination of these methods increases the likelihood of the patient retaining and comprehending the information effectively. Choices A, B, and C are less effective as they do not encompass the benefits of utilizing multiple teaching modalities.

4. Which of the following is a critical step in preventing ventilator-associated pneumonia (VAP)?

• A. Performing oral care with chlorhexidine
• B. Elevating the head of the bed to 30-45 degrees
• C. Administering prophylactic antibiotics
• D. Changing the ventilator circuit daily

Correct answer: B

Rationale: Elevating the head of the bed to 30-45 degrees is a critical step in preventing ventilator-associated pneumonia (VAP) because it helps reduce the risk of aspiration, which is a significant factor in the development of VAP. Elevating the head of the bed enhances pulmonary hygiene, decreases the risk of microaspiration, and promotes better lung function. Performing oral care with chlorhexidine is essential for oral hygiene but is not specifically aimed at preventing VAP. Administering prophylactic antibiotics without a clear indication can lead to antibiotic resistance and is not a recommended routine practice to prevent VAP. Changing the ventilator circuit daily is essential for infection control but is not the most critical step in preventing VAP.

5. What is the primary function of surfactant in the lungs?

• A. Reduce surface tension
• B. Enhance oxygen absorption
• C. Facilitate carbon dioxide release
• D. Increase lung volume

Correct answer: A

Rationale: The primary function of surfactant in the lungs is to reduce surface tension in the alveoli. This reduction in surface tension prevents lung collapse and allows for easier breathing. It is particularly crucial in premature infants to help with lung expansion. Choice B is incorrect because surfactant primarily affects surface tension, not oxygen absorption. Choice C is incorrect because surfactant's main role is not in facilitating carbon dioxide release. Choice D is incorrect because surfactant does not directly increase lung volume; its main role is in reducing surface tension.

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