A nurse is caring for a child who has otitis media with effusion. The nurse should identify which of the following manifestations indicates a tympanic membrane rupture.

Choice A: Contact isolation is not appropriate for a child who has measles, which is a highly contagious viral infection that causes fever, rash, cough, runny nose, and red eyes. Contact isolation is used for patients who have infections that can be spread by direct or indirect contact with the patient or their environment, such as wound infections, scabies, or Clostridioides difficile. Contact isolation requires wearing gloves and gowns and using dedicated equipment.

Choice B: Airborne isolation is appropriate for a child who has measles, as it is used for patients who have infections that can be spread by small droplets that can remain suspended in the air and travel over long distances, such as tuberculosis, chickenpox, or measles. Airborne isolation requires wearing a respirator mask and placing the patient in a negative pressure room with the door closed.

Choice C: Protective environment isolation is not appropriate for a child who has measles, as it is used for patients who have compromised immune systems and are at high risk of acquiring infections from others, such as transplant recipients, cancer patients, or patients receiving immunosuppressive therapy. Protective environment isolation requires wearing gloves, gowns, masks, and eye protection and placing the patient in a positive pressure room with high-efficiency particulate air (HEPA) filters.

Choice D: Droplet isolation is not appropriate for a child who has measles, as it is used for patients who have infections that can be spread by large droplets that can travel up to 6 feet from the source, such as influenza, pertussis, or meningitis. Droplet isolation requires wearing a surgical mask and eye protection and placing the patient in a private room or cohorting with other patients with the same infection.

Choice A reason: This choice is incorrect because the radial artery is not an ideal site to assess the heart rate in an infant. The radial artery is located on the thumb side of the wrist, and it can be palpated by placing two fingers over it. It may be used for adults or older children who have a strong pulse, but it may be difficult to locate or feel in an infant who has a small or weak pulse.

Choice B reason: This choice is incorrect because the carotid artery is not an ideal site to assess the heart rate in an infant. The carotid artery is located on either side of the neck, and it can be palpated by placing two fingers over it. It may be used for adults or older children who have a cardiac arrest or shock, but it may be risky to use in an infant who has a fragile neck or airway.

Choice C reason: This choice is incorrect because the brachial artery is not an ideal site to assess the heart rate in an infant. The brachial artery is located on the inner side of the upper arm, and it can be palpated by placing two fingers over it. It may be used for infants or young children who have a blood pressure measurement, but it may be uncomfortable or inaccurate to use for a heart rate assessment.

Choice D reason: This choice is correct because the apex of the heart is an ideal site to assess the heart rate in an infant. The apex of the heart is located at the fifth intercostal space on the left midclavicular line, and it can be auscultated by placing a stethoscope over it. It may be used for infants or young children who have a regular and strong heartbeat, and it may provide the most accurate measurement of the heart rate.