A nurse is collecting data from a child who has pertussis. Which of the following manifestations should the nurse expect?

Fever. Pertussis, also known as whooping cough, is a highly contagious respiratory infection caused by the bacterium Bordetella pertussis. The characteristic symptoms of pertussis include paroxysmal (severe and uncontrollable) coughing fits, followed by a "whooping" sound during inhalation as the child tries to catch their breath. However, specific manifestations may vary depending on the stage of the illness. Fever is a common manifestation of pertussis. The child may have an elevated body temperature as a response to the infection. The fever is typically low-grade but can occasionally be higher. Koplik spots in (option B) is incorrect because they are small white or bluish-grey spots with a red halo that appear on the inside of the cheeks. However, Koplik spots are characteristic of measles (rubeola) and not pertussis. Facial erythema, or redness of the face, in (option C) is incorrect because it is not a typical manifestation of pertussis. Facial redness may be seen in other conditions such as fever, allergic reactions, or certain skin conditions. A beefy, red tongue Is in (option D) is incorrect because it is not associated with pertussis. This description is more commonly associated with other conditions such as vitamin B12 deficiency or certain types of oral infections.