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 client with a myocardial infarction comes to the nurse's station stating that he is ready to go home because there is nothing wrong with him. Which defense mechanism is the client using?

• A. Rationalization
• B. Denial
• C. Projection
• D. Conversion reaction

Correct answer: B

Rationale: The correct answer is B: Denial. The client displaying denial refuses to acknowledge the reality of having a myocardial infarction. Rationalization (choice A) involves making excuses for behavior, not denying a condition. Projection (choice C) is attributing one's thoughts or feelings to others, not denying an illness. Conversion reaction (choice D) is converting psychological distress into physical symptoms, which is not evident in this scenario. Therefore, denial is the defense mechanism being used in this situation.

3. The nurse is assigning staff for the day. Which assignment should be given to the nursing assistant?

• A. Taking the vital signs of the 5-month-old with bronchiolitis
• B. Taking the vital signs of the 10-year-old with a 2-day postappendectomy
• C. Administering medication to the 2-year-old with periorbital cellulitis
• D. Adjusting the traction of the 1-year-old with a fractured tibia

Correct answer: B

Rationale: The most appropriate assignment for a nursing assistant is to take the vital signs of a stable patient. A 10-year-old with a 2-day postappendectomy is considered stable, and routine vital signs monitoring can be safely delegated to a nursing assistant. Clients with bronchiolitis, periorbital cellulitis, and a fractured tibia require more specialized care and assessment by a licensed nurse. Bronchiolitis involves an airway alteration, periorbital cellulitis indicates an infection, and a fractured tibia may raise concerns of abuse. Therefore, options A, C, and D are incorrect for delegation to a nursing assistant.

4. 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.

5. How can the nurse best communicate to a client that he or she has been listening?

• A. restating the main feeling or thought the client has expressed
• B. making a judgment about the client's problem
• C. offering a leading question such as, 'And then what happened?'
• D. saying, 'I understand what you're saying.'

Correct answer: A

Rationale: The best way for the nurse to communicate to a client that he or she has been listening is by restating the main feeling or thought the client has expressed. Restating helps the client validate the nurse's understanding of the communication, demonstrating active listening skills. Making judgments about the client's problem, as suggested in Choice B, can hinder effective communication by introducing bias and potential misinterpretation. Offering a leading question like in Choice C is not ideal for confirming understanding; it rather seeks more information. Choice D, simply saying 'I understand what you're saying,' may not convey active listening as effectively as restating the client's main feelings or thoughts, as it lacks the validation component present in restating.

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