A nursing preceptor is reviewing life expectancy in the twentieth century with a new nurse. The nurse should recognize that which of the following was most responsible for the dramatic increase in life expectancy during the twentieth century.
Advances in surgical techniques and procedures
Sanitation and other public health activities
Technology increases in the field of medical laboratory research
Use of antibiotics to fight infections
The Correct Answer is B
Choice A reason: Advances in surgical techniques and procedures have improved the outcomes of many patients, but they are not the main factor for the increase in life expectancy. Surgical interventions are often costly, risky, and inaccessible to many people, especially in developing countries.
Choice B reason: Sanitation and other public health activities have had a significant impact on reducing mortality from infectious diseases, such as cholera, typhoid, and tuberculosis. These activities include providing safe water, improving hygiene, promoting vaccination, and controlling vector-borne diseases. Sanitation and public health measures are relatively low-cost, effective, and preventive strategies that can benefit large populations.
Choice C reason: Technology increases in the field of medical laboratory research have contributed to the diagnosis and treatment of many diseases, such as cancer, diabetes, and genetic disorders. However, these technologies are often expensive, complex, and dependent on specialized equipment and personnel. Therefore, they are not the main reason for the increase in life expectancy.
Choice D reason: The use of antibiotics to fight infections has been a major breakthrough in medicine, saving millions of lives from bacterial infections. However, antibiotics have also led to the emergence of antibiotic-resistant bacteria, which pose a serious threat to public health. Moreover, antibiotics are not effective against viral infections, such as influenza, HIV, and COVID-19. Therefore, antibiotics are not the most responsible factor for the increase in life expectancy.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Natural history of disease is not an approach that explains the factors that allow the reproduction and spread of infectious disease. Natural history of disease is a concept that describes the progression and outcome of disease in the absence of any intervention. It includes stages such as susceptibility, exposure, incubation, prodrome, clinical, recovery, disability, or death.
Choice B reason: Health promotion is not an approach that explains the factors that allow the reproduction and spread of infectious diseases. Health promotion is a process that enables people to increase control over and improve their health. It involves strategies such as education, advocacy, policy, or community development.
Choice C reason: Levels of prevention is not an approach that explains the factors that allow the reproduction and spread of infectious disease. Levels of prevention is a framework that classifies different types of interventions based on their timing and purpose. It includes primary prevention (before disease occurs), secondary prevention (early detection and treatment), and tertiary prevention (reducing complications and disabilities).
Choice D reason: Epidemiologic triangle is an approach that explains the factors that allow the reproduction and spread of infectious disease. Epidemiologic triangle is a model that identifies three essential components of an infectious disease: agent (the microorganism that causes the disease), host (the person or animal that is infected), and environment (the physical, biological, or social factors that influence the transmission). The interaction and balance among these components determine the occurrence and spread of an infectious disease.
Correct Answer is A
Explanation
Choice A reason: Hypertension is a manifestation of increased intracranial pressure, as it reflects the body's attempt to maintain adequate cerebral perfusion pressure (CPP) and blood flow to the brain. CPP is the difference between the mean arterial pressure (MAP) and the intracranial pressure (ICP). When ICP rises, MAP must also rise to keep CPP constant and prevent cerebral ischemia. Hypertension is part of the Cushing's triad, which is a classic sign of increased ICP that also includes bradycardia and irregular respirations.
Choice B reason: Tinnitus is not a manifestation of increased intracranial pressure, as it does not affect the auditory system. Tinnitus is a ringing, buzzing, or hissing sound in the ears that can be caused by various factors, such as ear infections, noise exposure, medications, or aging. Tinnitus may be associated with other neurological conditions, such as Meniere's disease, acoustic neuroma, or multiple sclerosis, but not with increased ICP.
Choice C reason: Hypotension is not a manifestation of increased intracranial pressure, as it indicates a decrease in MAP and CPP, which can lead to cerebral ischemia and infarction. Hypotension can be caused by various factors, such as blood loss, dehydration, shock, or medications. Hypotension may worsen the outcome of increased ICP by reducing the oxygen and nutrient delivery to the brain.
Choice D reason: Tachycardia is not a manifestation of increased intracranial pressure, as it contradicts Cushing's triad. Tachycardia is an increase in heart rate that can be caused by various factors, such as anxiety, pain, fever, dehydration, or medications. Tachycardia may increase the oxygen demand and metabolic rate of the brain, which can exacerbate the effects of increased ICP.
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