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. A 20-year-old female has a prescription for tetracycline. While teaching the client how to take her medicine, the nurse learns that the client is also taking Ortho-Novum oral contraceptive pills. Which instructions should be included in the teaching plan?

• A. The oral contraceptives will decrease the effectiveness of the tetracycline.
• B. Nausea often results from taking oral contraceptives and antibiotics.
• C. Toxicity can result when taking these two medications together.
• D. Antibiotics can decrease the effectiveness of oral contraceptives, so the client should use an alternate method of birth control.

Correct answer: D

Rationale: When antibiotics and oral contraceptives are taken together, the effectiveness of the oral contraceptives can be reduced, increasing the risk of pregnancy. Therefore, it is important to advise the client to use an alternate method of birth control to prevent unintended pregnancy. Choices A, B, and C are incorrect because there is no evidence to suggest that oral contraceptives decrease the effectiveness of tetracycline, cause nausea, or result in toxicity when taken with antibiotics.

3. Using clich�s in therapeutic communication leads the client to:

• A. viewing the nurse as less understanding.
• B. accepting themselves as human.
• C. self-disclosing.
• D. feeling discounted.

Correct answer: D

Rationale: The use of clich�s in therapeutic communication is commonly construed by the client as the nurse's lack of understanding, involvement, and caring, which can lead the client to feel demeaned and discounted. Choice A is incorrect because clich�s do not make the client view the nurse as less understanding but rather as lacking depth in communication. Choice B is incorrect as clich�s do not directly lead the client to accepting themselves as human. Choice C is incorrect because clich�s usually hinder self-disclosure rather than encourage it.

4. Why is the intravenous route potentially the most dangerous route of drug administration?

• A. IV infiltration may occur.
• B. it allows for rapid administration of a drug.
• C. rapid administration of a drug can lead to toxicity
• D. it is the most commonly used route in hospitals.

Correct answer: C

Rationale: The correct answer is C: rapid administration of a drug can lead to toxicity. When a drug is administered intravenously, it has 100% bioavailability, entering the bloodstream immediately and increasing the risk of toxicity if not carefully monitored. While IV infiltration (choice A) can cause tissue damage, it is not typically life-threatening. Choice B is incorrect as the speed of administration is not the primary reason for the danger; it is the immediate and full dose reaching the bloodstream. Choice D is incorrect as the popularity of the route does not inherently make it more dangerous.

5. A 10-month-old child is brought to the Emergency Department because he is difficult to awaken. The nurse notes bruises on both upper arms. These findings are most consistent with

• A. wearing clothing that is too small for the child
• B. the child being shaken
• C. falling while learning to walk
• D. parents trying to awaken the child

Correct answer: B

Rationale: The correct answer is 'the child being shaken.' Children who are shaken are frequently grasped by both upper arms, leading to bruises in that area. The presentation of a difficult-to-awaken child with bruises on the upper arms is highly concerning for non-accidental trauma, such as abusive shaking. Symptoms of brain injury associated with shaking include a decreased level of consciousness. Choices A, C, and D are less likely because the combination of a child being difficult to awaken and bruises on both upper arms is highly suggestive of non-accidental trauma rather than benign causes like ill-fitting clothing, falling while learning to walk, or parents trying to awaken the child.

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