A nurse is collecting data from an infant who has respiratory syncytial virus (RS). Which of the following findings should the nurse expect?

Choice A rationaleRhinorrhea is a common manifestation of respiratory syncytial virus (RSV), as the virus causes inflammation of the upper respiratory mucosa leading to excessive nasal secretions. This inflammation and increased mucus production are the body's defensive response to eliminate the virus. The condition is most prevalent during early stages of infection and is often accompanied by other symptoms like cough and fever. The absence of other options makes rhinorrhea a characteristic feature in RSV.Choice B rationaleVesicles on the trunk are typically associated with varicella-zoster virus (chickenpox), not RSV. Vesicles form as the virus infects epithelial cells, leading to fluid-filled lesions that eventually crust over. This clinical presentation is entirely unrelated to the respiratory symptoms caused by RSV, which targets the respiratory epithelial cells rather than the skin.Choice C rationaleBarrel chest develops as a chronic adaptation in diseases like emphysema and cystic fibrosis, where prolonged air trapping occurs. RSV predominantly affects younger children acutely, resulting in symptoms like rhinorrhea, cough, and wheezing without long-term anatomical alterations like barrel chest.Choice D rationaleClubbing of the fingers arises in chronic conditions like congenital heart disease or cystic fibrosis due to prolonged hypoxia and tissue growth factors affecting the nails. RSV is an acute respiratory virus, unlikely to lead to chronic hypoxia causing clubbing.