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.

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.

Correct Answer: A

Rationale: The correct answer is A: 'Impaired physical mobility related to muscle rigidity and weakness.' For a client with Parkinson's disease, impaired physical mobility is a priority nursing diagnosis because of the characteristic motor symptoms such as muscle rigidity, bradykinesia, and postural instability. Addressing impaired physical mobility is crucial to enhance the client's quality of life. Choices B, C, and D are not the priority nursing diagnoses for a client with Parkinson's disease. Ineffective coping (Choice B) and fear of seizures (Choice D) may be concerns but are not the priority. Ineffective breathing pattern (Choice C) is not typically associated with Parkinson's disease.

Correct Answer: B

Rationale: Community health nursing primarily focuses on preventive measures and promoting overall health within a community. Choice A is incorrect as treatment is not the main emphasis. Choice C is incorrect as identification and assessment are steps that may be involved but not the main focus. Choice D is incorrect as it refers to the illness end rather than the preventive end of the wellness-illness continuum.

Correct Answer: A

Rationale: In planning a community health fair, the highest priority should be given to blood pressure screening. This is because hypertension is a common and serious health issue that often goes undetected. Identifying individuals with high blood pressure early can lead to timely interventions and management, potentially preventing severe complications such as heart disease or stroke. While topics like diabetes education, smoking cessation, and nutrition are important, addressing blood pressure screening first aligns with the goal of early detection and prevention of a prevalent health concern.