Nursing Elites

1. Epidemiology is directly concerned with which of the following?

• A. factors influencing occurrence and distribution of diseases, defects, disability, or death of groups of individuals
• B. vital health statistics
• C. environmental sanitation
• D. treatment of a communicable disease

Correct answer: A

Rationale: Corrected Rationale: Epidemiology is the study of the distribution and determinants of health-related states or events in specified populations and the application of this study to the control of health problems. It focuses on identifying and understanding the factors that influence the occurrence and distribution of diseases, defects, disability, or death of groups of individuals. Therefore, the correct answer is A. Choice B, vital health statistics, is not the primary focus of epidemiology. While vital health statistics may be used in epidemiological studies, it is not the direct concern of epidemiology. Choice C, environmental sanitation, although important for public health, is not the main focus of epidemiology. Epidemiology is more concerned with the factors influencing disease occurrence and distribution, rather than environmental sanitation. Choice D, treatment of a communicable disease, is more related to clinical medicine rather than epidemiology. Epidemiology is more focused on prevention, control, and understanding the patterns and causes of diseases rather than their treatment.

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. A client presents at a community-based clinic with complaints of shortness of breath, headache, dizziness, and nausea. During the assessment, the nurse learns that the client is a migrant worker who often uses a gasoline-powered pressure washer to clean equipment and farm buildings. Which type of poisoning is the most likely etiology of this client's symptoms?

• A. asbestos
• B. silica dust
• C. histoplasmosis
• D. carbon monoxide

Correct answer: D

Rationale: The client's symptoms of shortness of breath, headache, dizziness, and nausea are indicative of carbon monoxide poisoning, which can result from exposure to gasoline-powered equipment like pressure washers. Asbestos (Choice A) exposure would typically present with respiratory issues and cancer but not the rapid onset of symptoms described. Silica dust (Choice B) exposure is associated with respiratory conditions like silicosis, not the multisystem symptoms in the scenario. Histoplasmosis (Choice C) is a fungal infection that primarily affects the lungs and is not related to the client's exposure to a gasoline-powered pressure washer.

4. Which of the following is an example of a social determinant of health?

• A. Blood pressure
• B. Genetic mutations
• C. Housing conditions
• D. Age

Correct answer: C

Rationale: The correct answer is C: Housing conditions. Social determinants of health are the conditions in which people are born, grow, live, work, and age. Housing conditions directly impact health outcomes as they can affect exposure to toxins, safety, and overall well-being. Choice A, blood pressure, is a physiological measure and not a social determinant. Choice B, genetic mutations, relates to an individual's genetic makeup and is not influenced by social factors. Choice D, age, is a demographic factor and not a social determinant of health.

5. From January 1 to 15, 1996, there were 8 cases of Tetanus neonatorum in San Lazaro Hospital. There were two deaths. What is the case fatality ratio of this disease?

• A. 20%
• B. 30%
• C. 28%
• D. 25%

Correct answer: D

Rationale: The case fatality ratio is calculated as (deaths/cases) * 100. In this case, there were 2 deaths out of 8 cases. Therefore, the calculation is (2/8) * 100 = 25%. Choices A, B, and C are incorrect as they do not match the correct calculation.

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