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. Which action by the novice nurse indicates a need for further teaching?

• A. The nurse fails to wear gloves when removing a dressing.
• B. The nurse applies an oxygen saturation monitor to the earlobe.
• C. The nurse elevates the head of the bed to check blood pressure.
• D. The nurse places the extremity in a dependent position to acquire a peripheral blood sample.

Correct answer: A

Rationale: The correct answer is A. The novice nurse failing to wear gloves when removing a dressing indicates a need for further teaching to emphasize infection control practices. This action can lead to the spread of infections. Choices B, C, and D are incorrect because they demonstrate proper nursing skills and techniques. Applying an oxygen saturation monitor to the earlobe, elevating the head of the bed to check blood pressure, and placing the extremity in a dependent position to acquire a peripheral blood sample all reflect understanding of correct procedures in patient care.

3. When assessing a client with glaucoma, a nurse expects which of the following findings?

• A. Complaints of double vision
• B. Complaints of halos around lights
• C. Intraocular pressure of 15 mm Hg
• D. Soft globe on palpation

Correct answer: B

Rationale: When assessing a client with glaucoma, a common finding is complaints of halos around lights. Other symptoms of glaucoma include loss of peripheral vision or blind spots, reddened sclera, firm globe, decreased accommodation, and occasional eye pain. Glaucoma may be asymptomatic until permanent damage to the optic nerve and retina occurs. Double vision is not a typical symptom of glaucoma. In terms of intraocular pressure, normal levels range from 10 to 21 mm Hg, making an intraocular pressure of 15 mm Hg within the normal range. A soft globe on palpation is not a typical finding in glaucoma.

4. A client with acute leukemia develops a low white blood cell count. In addition to the institution of isolation, the nurse should:

• A. Request that foods be provided in sealed single-serving packages
• B. Ask the client to wear a mask when visitors are present
• C. Prep IV sites with mild soap and water and alcohol
• D. Provide foods in sealed single-serving packages

Correct answer: D

Rationale: For a client with acute leukemia and a low white blood cell count, preventing exposure to food contaminants is crucial due to immune suppression. Providing foods in sealed single-serving packages helps reduce the risk of contamination. Choice B is incorrect as it introduces the potential of infection from visitors. Choice A, suggesting disposable utensils, is not as effective as sealed containers in preventing food contamination. Choice C, using alcohol for prepping IV sites, is less suitable due to its drying effect and potential for skin breakdown, making sealed packages a better option for food safety.

5. The nurse is assessing the client recently returned from surgery. The nurse is aware that the best way to assess pain is to:

• A. Take the blood pressure, pulse, and temperature
• B. Ask the client to rate his pain on a scale of 0-5
• C. Watch the client's facial expression
• D. Ask the client if he is in pain

Correct answer: B

Rationale: The best way to evaluate pain levels is to ask the client to rate his pain on a scale. This method provides a more standardized and quantifiable measure of pain compared to subjective observations like facial expressions (choice C) or direct questioning (choice D). Monitoring vital signs (choice A) can be part of pain assessment but is not as specific or reliable as asking the client to self-report pain intensity.

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