A nurse is using analytic epidemiology when conducting a research project on a comparison group. Which of the following research projects is the nurse most likely completing?

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.

Choice A reason: Monitoring vital signs and neurological status frequently is a priority intervention for a client who has experienced a hemorrhagic stroke, as it helps to detect any changes in the client's condition and guide appropriate treatment. Hemorrhagic stroke is a medical emergency that occurs when a blood vessel in the brain ruptures and causes bleeding into the brain tissue. This can lead to increased intracranial pressure, cerebral edema, and brain damage. Therefore, the nurse should monitor the client's blood pressure, pulse, respiration, temperature, level of consciousness, pupil reaction, motor function, and sensory function frequently and report any abnormalities to the health care provider.

Choice B reason: Maintaining strict bed rest to minimize cerebral blood flow is not a priority intervention for a client who has experienced a hemorrhagic stroke, as it may not prevent further bleeding or improve the client's outcome. In fact, strict bed rest may increase the risk of complications such as deep vein thrombosis, pulmonary embolism, pneumonia, pressure ulcers, and muscle atrophy. The nurse should follow the health care provider's orders regarding the client's activity level and position. The nurse should also provide adequate hydration, nutrition, skincare, and comfort measures to the client.

Choice C reason: Administering anticoagulant medications as prescribed is not a priority intervention for a client who has experienced a hemorrhagic stroke, as it may worsen the bleeding and increase the risk of intracranial hemorrhage. Anticoagulant medications are used to prevent or treat ischemic stroke, which is caused by a blood clot that blocks a blood vessel in the brain. However, anticoagulant medications are contraindicated in hemorrhagic stroke, as they interfere with the blood's ability to clot and stop the bleeding. The nurse should avoid giving any medications that may affect coagulation or platelet function to the client unless ordered by the health care provider.

Choice D reason: Assisting the client with active range of motion exercises is not a priority intervention for a client who has experienced a hemorrhagic stroke, as it may not improve the client's neurological function or prevent complications. Active range of motion exercises are performed by the client with or without assistance from the nurse to maintain joint mobility and muscle strength. However, these exercises are not indicated in the acute phase of hemorrhagic stroke, as they may increase intracranial pressure or cause pain or discomfort to the client. The nurse should consult with the physical therapist before initiating any exercise program for the client.