Nursing Elites

1. Which of the following isoenzymes is elevated in a client who has had a myocardial infarction?

• A. CPK-BB
• B. CPK-MM
• C. CPK-MB
• D. CPK-MI

Correct answer: C

Rationale: CPK-MB is the correct answer as it is elevated in clients who have had a myocardial infarction. CPK-BB is elevated in clients with brain damage, and CPK-MM is elevated in clients with skeletal muscle damage. CPK-MI, mentioned in the rationale, does not exist, making it an incorrect choice.

2. All of the following tasks could be delegated to a nursing assistant or unlicensed assistive personnel (UAP) except:

• A. monitoring intravenous infusion
• B. assisting a client to the bathroom
• C. offering fluid intake every 1-2 hours
• D. monitoring/recording the amount of fluid taken

Correct answer: A

Rationale: Monitoring an intravenous infusion involves assessing for complications, adjusting the flow rate, and monitoring the client's response, which requires the knowledge and skills of a licensed nurse (RN or LPN). Tasks that can be delegated to nursing assistants or unlicensed assistive personnel include assisting a client to the bathroom, offering fluids, and recording fluid intake. These activities are within the scope of practice for UAPs as they do not involve the specialized knowledge and training needed for intravenous infusion monitoring.

3. Which of the following ethnic groups is at highest risk in the United States for pesticide-related injuries?

• A. Native American
• B. Asian-Pacific
• C. Norwegian
• D. Hispanic

Correct answer: D

Rationale: Hispanic people are at the highest risk in the United States for pesticide-related injuries due to their significant representation among migrant workers in agricultural settings. Working in such environments exposes them to pesticides more frequently, thus elevating their risk compared to other ethnic groups. In contrast, Native American, Asian-Pacific, and Norwegian populations are not as commonly engaged in agricultural work involving pesticide exposure, which makes them less susceptible to pesticide-related injuries. Therefore, the correct answer is Hispanic.

4. The nurse is teaching a client about communicable diseases and explains that a portal of entry is:

• A. a vector.
• B. a source, like contaminated water.
• C. food.
• D. the respiratory system.

Correct answer: D

Rationale: The correct answer is 'the respiratory system.' A portal of entry is the path through which a microorganism enters the body. In the case of communicable diseases, the respiratory system can serve as a portal of entry for pathogens such as viruses or bacteria. Choices A, B, and C are incorrect. A 'vector' is an organism that transmits disease, not the entry point for pathogens. Contaminated water or food can act as sources or reservoirs of disease-causing microorganisms, not portals of entry.

5. Which of the following syndromes associated with incomplete lesions of the spinal cord results from damage to one-half of the spinal cord?

• A. Brown-Séquard syndrome
• B. posterior cord syndrome
• C. central cord syndrome
• D. cauda equina syndrome

Correct answer: A

Rationale: Brown-Séquard syndrome is indeed associated with incomplete lesions of the spinal cord, and it specifically results from damage to one-half of the spinal cord. This syndrome manifests as ipsilateral motor paralysis, ipsilateral loss of vibration and proprioception, and contralateral loss of pain and temperature sensation. Posterior cord syndrome mainly involves the loss of proprioception and vibratory sense, while sparing motor function and pain sensation. Central cord syndrome typically presents with more weakness in the upper extremities compared to the lower extremities due to central spinal cord damage. Cauda equina syndrome affects the nerve roots at the level of the conus medullaris, leading to symptoms like lower extremity weakness, numbness, and bowel/bladder dysfunction.

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