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. Lidocaine is a medication frequently ordered for the client experiencing

• A. Atrial tachycardia
• B. Ventricular tachycardia
• C. Heart block
• D. Ventricular bradycardia

Correct answer: B

Rationale: Lidocaine is used to treat ventricular tachycardia. This medication slowly exerts an antiarrhythmic effect by increasing the electrical stimulation threshold of the ventricles without depressing the force of ventricular contractions. It is not used for atrial arrhythmias; thus, answer A is incorrect. Answers C and D are incorrect because lidocaine does not slow the heart rate, so it is not used for heart block or bradycardia.

3. The nurse wishes to decrease a client's use of denial and increase the client's expression of feelings. To do this, the nurse should:

• A. tell the client to stop using the defense mechanism of denial.
• B. positively reinforce each expression of feelings.
• C. instruct the client to express feelings.
• D. challenge the client each time denial is used.

Correct answer: B

Rationale: In the scenario provided, the nurse aims to reduce the client's use of denial and encourage the expression of feelings. Positive reinforcement for each expression of feelings is an effective approach to achieve this goal. By positively reinforcing the client's expression of feelings, the nurse encourages the desired behavior, making it more likely for the client to continue sharing their emotions. This approach creates a supportive and accepting environment for the client. In contrast, telling the client to stop using denial (Choice A) may create resistance and inhibit communication by putting pressure on the client. Instructing the client to express feelings (Choice C) is less effective as it lacks the element of reinforcement that is essential for behavior modification. Challenging the client each time denial is used (Choice D) may lead to defensiveness and hinder the therapeutic relationship, making it a less favorable option.

4. The Token Economy is a type of therapy that focuses on:

• A. play therapy
• B. behavior modification
• C. milieu therapy
• D. associative

Correct answer: B

Rationale: The correct answer is 'behavior modification.' The Token Economy is a form of behavior modification that involves providing positive reinforcement in the form of tokens or rewards for desired behaviors. This approach aims to increase the occurrence of positive behaviors by rewarding them. Play therapy (choice A) focuses on using play as a medium for therapeutic communication, not specifically behavior modification. Milieu therapy (choice C) involves shaping the environment to promote desired behaviors but is not the primary focus of the Token Economy. 'Associative' (choice D) is not directly related to the Token Economy or its focus on behavior modification, making it an incorrect choice.

5. To ensure safety while administering a nitroglycerine patch, what should the nurse do?

• A. Wear gloves
• B. Shave the area where the patch will be applied
• C. Wash the area thoroughly with soap and rinse with hot water
• D. Apply the patch to the buttocks

Correct answer: A

Rationale: To protect herself, the nurse should wear gloves when applying a nitroglycerine patch or cream. Answer B is incorrect because shaving the area where the patch will be applied might abrade the skin, increasing the risk of irritation. Answer C is incorrect because washing with hot water can vasodilate the skin, potentially increasing the absorption of nitroglycerine. Nitroglycerine patches should be applied to areas above the waist, making answer D incorrect as applying it to the buttocks is not recommended.

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