A nurse is reviewing the laboratory report of a newly admitted school-age child who has a fever. The nurse should identify which of the following laboratory results is an indication of an infection and should be reported to the charge nurse immediately.

Choice A rationale:
Washing the child's pillow in cold water twice monthly is not a relevant instruction for controlling allergens in asthma management. Asthma triggers are often related to airborne allergens such as dust mites, pollen, and pet dander, and focusing on pillow washing alone does not address the broader issue of allergen exposure.
Choice B rationale:
Using a humidifier in the child's bedroom can actually worsen asthma symptoms. Humidifiers can increase the humidity in the air, promoting the growth of mold and dust mites, which are common allergens that can trigger asthma symptoms. Therefore, this instruction is not appropriate for asthma management.
Choice C rationale:
This is the correct answer. Using a damp cloth to dust the child's furniture weekly is a relevant instruction for controlling allergens. Dusting with a damp cloth helps to capture and remove allergens such as dust mites, pollen, and pet dander from surfaces, reducing the child's exposure to these triggers and potentially minimizing asthma symptoms.
Choice D rationale:
Installing carpet in the child's bedroom is not recommended for asthma management. Carpets can harbor dust mites, mold, and other allergens that can exacerbate asthma symptoms. Hard flooring surfaces that can be easily cleaned and do not trap allergens are a better choice for individuals with asthma.

Choice A rationale:
Hematocrit 36%. A hematocrit level of 36% falls within the normal range for adolescents. Hematocrit measures the proportion of blood volume occupied by red blood cells and is used to assess for anemia or polycythemia. A level of 36% is not a cause for concern in this case.
Choice B rationale:
Hemoglobin 12 g/dL. A hemoglobin level of 12 g/dL is within the normal range for adolescents. Hemoglobin is a protein in red blood cells that carries oxygen. This level indicates that the adolescent is not significantly anemic.
Choice C rationale:
Glucose 120 mg/dL. A glucose level of 120 mg/dL is within the normal range for a random blood glucose test. However, in the context of diabetes mellitus, the nurse should be more concerned about the HbA1c level, which reflects the average blood glucose level over the past few months.
Choice D rationale:
HbA1c 10.7%. HbA1c, or glycated hemoglobin, reflects the average blood glucose concentration over a span of approximately 2 to 3 months. An HbA1c level of 10.7% is significantly elevated and indicates poor long-term glucose control. This value suggests that the adolescent's diabetes management has not been effective, which can lead to an increased risk of diabetes-related complications over time. The nurse should notify the healthcare provider so that appropriate adjustments can be made to the treatment plan.