A nurse is caring for a client who has a history of chronic obstructive pulmonary disease (COPD) and is receiving oxygen therapy at home. The nurse should instruct the client to report which of the following findings as an indication of oxygen toxicity?

Choice A reason: Assess the rest of the child's body for a rash.

The child's red marks across the cheeks are characteristic of fifth disease (also known as erythema infectiosum). Fifth disease is caused by parvovirus B19 and typically presents with a bright red rash on the cheeks, often referred to as "slapped cheek" appearance. The rash may eventually spread to other areas of the body, including the arms, trunk, thighs, and buttocks. It is usually mild and self-limiting.

Choice B reason: This option is not appropriate for a rash caused by fifth disease. There is no indication of child abuse or neglect.

Choice C reason: The rash is due to a viral infection and not related to trauma or injury. Questioning the parents is unnecessary.

Choice D reason: While assessing the child's temperature is important in general nursing care, it is not specifically related to the red marks on the cheeks in this case.

Choice A reason: Loss of appetite is not an urgent finding, as it may be caused by various factors, such as nausea, pain, or stress. The nurse should monitor the child's fluid and calorie intake and encourage oral hydration and nutrition. However, loss of appetite does not require immediate reporting to the health care provider.

Choice B reason: Platelet count is not an urgent finding, as it is not given in the text. The nurse should check the child's laboratory results and compare them with the normal ranges for preschoolers. A normal platelet count for children is 150,000 to 450,000 per microliter of blood¹. A low platelet count (thrombocytopenia) may indicate bleeding disorders, infections, or bone marrow problems. A high platelet count (thrombocytosis) may indicate inflammation, infection, or cancer. The nurse should report any abnormal platelet count to the health care provider, but it is not an immediate concern.

Choice C reason: Developmental regression is an urgent finding, as it may indicate a serious neurological problem, such as a brain tumor, infection, or injury. Developmental regression is the loss of previously acquired skills or milestones, such as language, motor, or social skills. The nurse should assess the child's developmental level and report any signs of regression to the health care provider as soon as possible.

Choice D reason: Absolute neutrophil count is an urgent finding, as it may indicate a severe infection or a compromised immune system. Neutrophils are a type of white blood cell that fight bacterial infections. The absolute neutrophil count is the number of neutrophils in a microliter of blood. A normal absolute neutrophil count for children is 1,500 to 8,000 per microliter of blood². A low absolute neutrophil count (neutropenia) may increase the risk of infection and sepsis. A high absolute neutrophil count (neutrophilia) may indicate an acute infection or inflammation. The nurse should report any abnormal absolute neutrophil count to the health care provider immediately.

Choice E reason: Hemoglobin is not an urgent finding, as it is not given in the text. The nurse should check the child's laboratory results and compare them with the normal ranges for preschoolers. Hemoglobin is a protein in red blood cells that carries oxygen. A normal hemoglobin level for children is 11.5 to 15.5 grams per deciliter of blood³. A low hemoglobin level (anemia) may indicate blood loss, iron deficiency, or bone marrow problems. A high hemoglobin level (polycythemia) may indicate dehydration, lung disease, or heart disease. The nurse should report any abnormal hemoglobin level to the health care provider, but it is not an immediate concern.