Nursing Elites

1. Which of the following measures the frequency of new cases of the phenomenon during a given period of time?

• A. prevalence rate
• B. proportionate mortality rate
• C. case fatality rate
• D. incidence rate

Correct answer: D

Rationale: The correct answer is D, incidence rate. Incidence rate measures the frequency of new cases of a phenomenon, providing important information about the risk of developing the condition. Prevalence rate (choice A) reflects both old and new cases, proportionate mortality rate (choice B) is the proportion of deaths due to a specific cause, and case fatality rate (choice C) measures the proportion of deaths among confirmed cases, not just new cases.

2. The nurse is caring for a client on mechanical ventilation. When performing endotracheal suctioning, the nurse will avoid hypoxia by

• A. Inserting a fenestrated catheter with a whistle tip without suction
• B. Completing the suction pass in 30 seconds with a pressure of 150 mm Hg
• C. Hyperoxygenating with 100% O2 for 1 to 2 minutes before and after each suction pass
• D. Minimizing the suction pass to 60 seconds while slowly rotating the lubricated catheter

Correct answer: C

Rationale: Hyperoxygenating the client before and after suctioning helps prevent hypoxia by ensuring adequate oxygen levels during the procedure, which briefly interrupts the client's normal breathing pattern. Choice A is incorrect because inserting a fenestrated catheter with a whistle tip without suction would not prevent hypoxia. Choice B is incorrect as completing the suction pass in 30 seconds with a pressure of 150 mm Hg may lead to hypoxia. Choice D is incorrect as minimizing the suction pass to 60 seconds may not provide enough time for effective suctioning and could lead to hypoxia.

3. The nurse is caring for a 4-year-old child with a greenstick fracture. In explaining this type of fracture to the parents, the best response by the nurse should be that

• A. A child's bone is more flexible and can be bent 45 degrees before breaking
• B. Bones of children are more porous than adults and often have incomplete breaks
• C. Compression of porous bones produces a buckle or torus type break
• D. Bone fragments often remain attached by a periosteal hinge

Correct answer: B

Rationale: The correct answer is B. Greenstick fractures are common in children because their bones are softer and more porous than adult bones, leading to incomplete breaks when force is applied. Choice A is incorrect as greenstick fractures are not due to bone flexibility but rather the porous nature of children's bones. Choice C is incorrect as it describes a buckle or torus type break, which is not characteristic of a greenstick fracture. Choice D is incorrect as greenstick fractures do not involve bone fragments remaining attached by a periosteal hinge.

4. While caring for a client with infective endocarditis, the nurse must be alert for signs of pulmonary embolism. Which of the following assessment findings suggests this complication?

• A. Positive Homan's sign
• B. Fever and chills
• C. Dyspnea and cough
• D. Sensory impairment

Correct answer: C

Rationale: The correct answer is C: 'Dyspnea and cough.' Pulmonary embolism often presents with a sudden onset of dyspnea (difficulty breathing) and cough, which are due to the obstruction of blood flow in the pulmonary arteries. Choices A, B, and D are incorrect. Positive Homan's sign is associated with deep vein thrombosis, fever and chills are nonspecific symptoms commonly seen in infective endocarditis, and sensory impairment is not typically indicative of pulmonary embolism.

5. To be an effective educator, you should:

• A. listen to people's problems and decide on the approach to meet their needs
• B. select the best strategy for health action for people to implement
• C. direct people's efforts to implement community-based projects
• D. simply tell your clients what to do for their problems/needs

Correct answer: B

Rationale: The correct answer is to select the best strategy for health action for people to implement because it empowers the community to take ownership of their health. Listening to people's problems (Choice A) is important, but the effectiveness lies in empowering them to implement solutions. Directing people's efforts (Choice C) can be directive and may not foster community ownership. Just telling clients what to do (Choice D) does not promote active participation and empowerment.

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