Nursing Elites

1. A client with a history of atrial fibrillation is receiving warfarin (Coumadin) therapy. Which laboratory result indicates that the therapy is effective?

• A. International normalized ratio (INR) of 1.0.
• B. Prothrombin time (PT) of 12 seconds.
• C. Partial thromboplastin time (PTT) of 60 seconds.
• D. International normalized ratio (INR) of 2.5.

Correct answer: D

Rationale: An International Normalized Ratio (INR) of 2.5 indicates that warfarin therapy is within the therapeutic range for a client with atrial fibrillation. A lower INR (such as 1.0) would suggest subtherapeutic levels, risking blood clots. Prothrombin time (PT) and partial thromboplastin time (PTT) are not specific to monitoring warfarin therapy.

2. Which client has the highest risk for developing community-acquired pneumonia?

• A. a 40-year-old first-grade teacher who works with underprivileged children
• B. a 75-year-old retired secretary with exercise-induced wheezing
• C. a 60-year-old homeless person who is an alcoholic and smokes
• D. a 35-year-old aerobics instructor who skips meals and eats only vegetables

Correct answer: C

Rationale: The correct answer is C, a 60-year-old homeless person who is an alcoholic and smokes. This client has the highest risk of developing community-acquired pneumonia due to multiple factors such as homelessness, substance abuse, and smoking. Homelessness can lead to poor living conditions and limited access to healthcare, increasing susceptibility to infections. Alcoholism and smoking weaken the immune system, making individuals more vulnerable to respiratory infections like pneumonia. Choices A, B, and D do not present the same level of risk factors for pneumonia compared to choice C.

3. The nurse notices that the influenza immunization rate is much lower for certain demographic groups than for others. Which intervention is likely to be most useful in increasing the rates of immunization in the underserved community groups?

• A. designated clinics conveniently located in target neighborhoods
• B. reports on decreasing influenza rates during times of greatest prevalence
• C. legislative proposals that mandate influenza vaccinations for all
• D. radio announcements about the availability of the influenza vaccine

Correct answer: A

Rationale: Conveniently located clinics in target neighborhoods increase accessibility, making it easier for underserved community groups to receive influenza immunizations. This intervention directly addresses the issue of lower immunization rates by improving convenience and access. Reports on decreasing influenza rates (choice B) may not directly impact immunization rates. Legislative proposals mandating vaccinations (choice C) could face resistance and may not always be the most effective or practical solution. Radio announcements (choice D) may raise awareness but may not address the underlying barriers to immunization faced by underserved communities.

4. The healthcare provider is inspecting the external eye structures of a client. Which finding is a normal racial variation?

• A. Blue sclerae.
• B. Brown macules on the sclerae.
• C. Slightly yellow sclerae in an African-American client.
• D. Conjunctival pallor.

Correct answer: C

Rationale: The slightly yellow color of the sclera is a normal racial variation found in the African-American population. Blue sclerae (Choice A) are associated with osteogenesis imperfecta, not a normal racial variation. Brown macules on the sclerae (Choice B) may indicate issues like melanoma or melanosis but are not a normal racial variation. Conjunctival pallor (Choice D) suggests anemia or decreased blood flow but is not a normal racial variation.

5. The healthcare provider is assessing a client who has a new arteriovenous fistula in the left arm for hemodialysis. Which finding requires immediate intervention?

• A. A thrill is palpable on the fistula.
• B. The client's arm is warm and red.
• C. The fistula has a bruit on auscultation.
• D. There is no bruit on auscultation.

Correct answer: B

Rationale: The correct answer is B. Warmth and redness in the client's arm suggest infection or thrombosis of the arteriovenous fistula, which requires immediate intervention to prevent complications. A thrill (A) is a normal finding in a functional arteriovenous fistula, indicating good blood flow. A bruit (C) is also a normal finding on auscultation of a functioning arteriovenous fistula, indicating proper blood flow. The absence of a bruit (D) may indicate a non-functioning fistula, which would need further evaluation but does not require immediate intervention as warmth and redness do.

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