Nursing Elites

1. Which laboratory test would be the least effective in diagnosing a myocardial infarction?

• A. AST
• B. Troponin
• C. CK-MB
• D. Myoglobin

Correct answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

2. The best definition of communication is:

• A. the sending and receiving of messages.
• B. the effect of sending verbal messages.
• C. an ongoing, interactive form of transmitting transactions.
• D. the use of message variables to send information.

Correct answer: C

Rationale: Communication is defined as an ongoing, interactive form of transmitting transactions. It involves a dynamic process of sending (encoding) and receiving (decoding) messages while being influenced by the experiences and perceptions of both the sender and receiver. This process is interactive and occurs within an environment, shaping individuals' self-concept, identity, and relationships. The correct answer captures the complexity and interactive nature of communication. Choice A, 'the sending and receiving of messages,' is too simplistic and does not encompass the interactive nature of communication. Choice B, 'the effect of sending verbal messages,' focuses solely on verbal communication and overlooks non-verbal forms. Choice D, 'the use of message variables to send information,' emphasizes technical aspects rather than the interactive and transactional nature of communication.

3. Which of the following solutions is routinely used to flush an IV device before and after the administration of blood to a client?

• A. 0.9% sodium chloride
• B. 5% dextrose in water solution
• C. Sterile water
• D. Heparin sodium

Correct answer: A

Rationale: The correct answer is 0.9% sodium chloride. Normal saline is 0.9% sodium chloride, which has the same osmolarity as blood and does not cause cell lysis. Choices 2 and 3, 5% dextrose in water solution and sterile water, are hypotonic solutions that can lead to cell lysis. Choice 4, Heparin sodium, is an anticoagulant and is not routinely used to flush an IV device before and after the administration of blood.

4. The client is taking prednisone 7.5mg po each morning to treat his systemic lupus erythematosus. Which statement best explains the reason for taking the prednisone in the morning?

• A. There is less chance of forgetting the medication if taken in the morning.
• B. There will be less fluid retention if taken in the morning.
• C. Prednisone is absorbed best with the breakfast meal.
• D. Morning administration mimics the body's natural secretion of corticosteroid.

Correct answer: D

Rationale: Taking corticosteroids in the morning mimics the body's natural release of cortisol, which follows a diurnal pattern with higher levels in the morning. This timing helps regulate the body's inflammatory response and minimizes potential side effects. Answer A is not the primary reason for morning dosing, as adherence concerns can be addressed through other means. Answer B is incorrect since fluid retention is not influenced by the timing of prednisone administration. Answer C is also incorrect as prednisone absorption is not significantly affected by whether it is taken with breakfast or not.

5. When working with a client diagnosed with Borderline Personality Disorder who frequently attempts self-harm, what is the best intervention to facilitate behavior change?

• A. Constantly observing the client to prevent self-harm.
• B. Enlisting the client in defining and describing harmful behaviors.
• C. Checking on the client every 15 minutes to ensure they are not engaging in harmful behavior.
• D. Removing all items from the environment that the client could use to harm themselves.

Correct answer: B

Rationale: The most effective intervention when working with clients who have a history of self-harm, like the client diagnosed with Borderline Personality Disorder, is to involve them actively in their treatment. By enlisting the client to define and describe the harmful behaviors, the client becomes an integral part of identifying triggers and understanding the underlying causes of their actions. This approach empowers the client, promotes self-awareness, and fosters a sense of control over their behaviors. Constantly observing the client (Choice A) may lead to a lack of trust and hinder the therapeutic relationship. Checking on the client every 15 minutes (Choice C) may disrupt the client's sense of autonomy and privacy. Removing all items from the environment that could be used for self-harm (Choice D) is a temporary solution and does not address the root causes of the behavior.

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