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 returns to the unit from surgery with a blood pressure of 90/50, pulse 132, respirations 30. Which action by the nurse should receive priority?

• A. Continue monitoring the vital signs
• B. Contact the physician
• C. Ask the client how they feel
• D. Ask the LPN to continue post-op care

Correct answer: B

Rationale: The priority action for the nurse is to contact the physician immediately due to the client's abnormal vital signs. A blood pressure of 90/50, pulse of 132, and respirations of 30 indicate instability and require prompt medical attention. Continuing to monitor vital signs, as in choice A, may lead to a delay in necessary interventions. Asking the client how they feel, as in choice C, provides subjective data and does not address the urgent need for medical intervention. Involving the LPN, as in choice D, is not appropriate in this critical situation where the client's condition is unstable and requires immediate physician assessment and intervention.

3. A client with cancer is admitted to the oncology unit. Stat lab values reveal Hgb 12.6, WBC 6500, K+ 1.9, uric acid 7.0, Na+ 136, and platelets 178,000. The nurse evaluates that the client is experiencing which of the following?

• A. Hypernatremia
• B. Hypokalemia
• C. Myelosuppression
• D. Leukocytosis

Correct answer: B

Rationale: The correct answer is 'Hypokalemia.' The potassium level of 1.9 indicates low potassium levels, a condition known as hypokalemia. The other lab values are within normal ranges: Hgb 12.6, WBC 6500, uric acid 7.0, Na+ 136, and platelets 178,000. Hypernatremia (choice A) refers to high sodium levels, which are not present in this case. Myelosuppression (choice C) is a decrease in bone marrow activity, which is not indicated by the lab values provided. Leukocytosis (choice D) is an increase in white blood cells, which is also not present based on the given values.

4. In performing a psychosocial assessment, the nurse begins by asking questions that encourage the client to describe problematic behaviors and situations. The next step is to elicit the client's

• A. feelings about what has been described.
• B. thoughts about what has been described.
• C. possible solutions to the problem.
• D. intent in sharing the description.

Correct answer: B

Rationale: In performing a psychosocial assessment, the nurse follows a structured approach, starting with encouraging the client to describe problematic behaviors and situations. The next step is to elicit the client's thoughts about what has been described. This step helps gather more assessment data and understand how the client interprets the situation. Asking about feelings, exploring possible solutions, and understanding the client's intent in sharing the description are more complex processes that come later in the assessment. Therefore, the correct next step after describing behaviors and situations is to inquire about the client's thoughts.

5. Upon arrival at the emergency room, the client presents with severe burns to the left arm, hands, face, and neck. What action should take priority?

• A. Starting an IV
• B. Applying oxygen
• C. Obtaining blood gases
• D. Medicating the client for pain

Correct answer: B

Rationale: In a client with severe burns to the face and neck, airway assessment and supplemental oxygen are crucial. Therefore, applying oxygen is the priority to ensure adequate oxygenation for the client. This intervention takes precedence over other actions to stabilize the client's condition. Starting an IV for fluid resuscitation is the next appropriate step following ensuring oxygenation (Choice A). While pain management is important, it is a secondary priority after ensuring oxygenation and fluid resuscitation, making medicating the client for pain a later intervention (Choice D). Obtaining blood gases (Choice C) is not the immediate priority in this scenario and would typically be ordered by the healthcare provider based on the client's condition and response to initial interventions.

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