Nursing Elites

1. When caring for premature newborns in an intensive care setting, a nurse carefully monitors oxygen concentration. What is the most common complication of this therapy?

• A. Intraventricular hemorrhage
• B. Retinopathy of prematurity
• C. Bronchopulmonary dysplasia
• D. Necrotizing enterocolitis

Correct answer: B

Rationale: Retinopathy of prematurity is the most common complication in premature infants exposed to high concentrations of oxygen. This condition leads to abnormal blood vessel growth in the retina, which can potentially result in blindness if not managed promptly. Intraventricular hemorrhage, though a significant concern in premature infants, is not directly related to oxygen therapy. Bronchopulmonary dysplasia is primarily associated with mechanical ventilation and oxygen exposure over time, not specifically with oxygen concentration monitoring. Necrotizing enterocolitis is more linked to gastrointestinal issues and is not the most common complication of oxygen therapy in premature newborns.

2. A client is admitted with a diagnosis of myocardial infarction (MI). The client is complaining of chest pain. The nurse knows that pain related to an MI is due to

• A. Insufficient oxygenation of the cardiac muscle
• B. Potential circulatory overload
• C. Left ventricular overload
• D. Electrolyte imbalance

Correct answer: A

Rationale: The correct answer is A: Insufficient oxygenation of the cardiac muscle. Myocardial infarction pain is primarily caused by inadequate oxygen reaching the heart muscle, leading to ischemia and tissue damage. Choices B, C, and D are incorrect because circulatory overload, left ventricular overload, and electrolyte imbalance are not the primary causes of chest pain in myocardial infarction. Circulatory overload may lead to other symptoms like edema, left ventricular overload can result in heart failure symptoms, and electrolyte imbalance may present with various manifestations, but none of these directly cause the characteristic chest pain associated with an MI.

3. What is the measure of the number of new cases of a disease in a specific population during a certain time period called?

• A. Prevalence
• B. Incidence
• C. Mortality rate
• D. Morbidity rate

Correct answer: B

Rationale: The correct answer is B, Incidence. Incidence refers to the number of new cases of a disease in a specific population during a certain time period. Prevalence (choice A) refers to the total number of cases of a disease in a population at a specific point in time. Mortality rate (choice C) is the measure of the number of deaths in a particular population due to a specific cause. Morbidity rate (choice D) is a broader term that encompasses the incidence and prevalence of a disease in a population.

4. The RN at a migrant health center notes an increased incidence of dermatitis in seasonal farm workers at a local fruit farm. In response to this finding, what is the most important information for the RN to obtain as part of the community assessment?

• A. Availability of clean fresh water to wash hands after work.
• B. Proper housing
• C. Access to health care services
• D. Access to transportation

Correct answer: A

Rationale: The correct answer is A: Availability of clean fresh water to wash hands after work. Proper hand hygiene, including washing hands with clean water, is crucial in preventing dermatitis, especially in farm workers who are exposed to potential irritants in their work environment. While proper housing (choice B), access to health care services (choice C), and access to transportation (choice D) are important factors in overall community health, they are not directly linked to preventing dermatitis in this scenario.

5. A client is suspected of being poisoned and presents with symmetric, descending flaccid paralysis, blurred vision, double vision, and dry mouth. The nurse should consider these findings consistent with which potential bioterrorism agent?

• A. ricin
• B. botulism toxin
• C. sulfur mustard
• D. yersinia pestis

Correct answer: B

Rationale: The correct answer is B: botulism toxin. Botulism toxin is associated with symmetric, descending flaccid paralysis, blurred vision, double vision, and dry mouth, which are consistent with the client's presentation. Ricin (Choice A) typically presents with gastrointestinal symptoms. Sulfur mustard (Choice C) is a blistering agent causing skin, eye, and respiratory issues. Yersinia pestis (Choice D) is associated with the bubonic plague, presenting with fever, malaise, and buboes.

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