An eighth-grade student appears in the school office with a skin manifestation that itches. He states that it began on the way to school after he took a shortcut through a field. The nurse performs a skin assessment and finds areas of erythema with streaks and patches on both legs. She determines that he is exhibiting signs of contact dermatitis. What is the first action that the nurse should take?

A. Auscultating breath sounds can provide valuable information about the presence of wheezing, crackles, or diminished breath sounds, which may indicate respiratory issues. However, while this assessment is important for understanding the underlying cause of dyspnea, it does not directly measure the patient's oxygenation status.
B. Observing chest expansion can help the nurse assess the mechanics of breathing and whether there are any restrictions in lung expansion. While this assessment is useful, it does not provide a clear indication of the patient's oxygen saturation levels or immediate need for supplemental oxygen.
C. Measuring capillary refill can give insights into peripheral perfusion and circulation, which can be affected by oxygenation. However, it is not the most direct or specific assessment for determining the need for supplemental oxygen in a patient with dyspnea.
D. Measuring oxygen saturation (using a pulse oximeter) provides a direct and objective assessment of the patient's oxygenation status. Normal oxygen saturation levels typically range from 95% to 100%. If the oxygen saturation is below the acceptable range (usually less than 92% in many clinical settings), this would indicate the need for supplemental oxygen.

A. While it may be important to inform the parents later, this is not the immediate priority. The first step should be to assess and manage the current situation before involving the parents.
B. This is a reasonable action to help soothe the itching and irritation caused by contact dermatitis. However, before applying compresses, it’s crucial to ensure that the area is clean and that there is no potential for worsening the condition.
C. This may be necessary if the reaction is severe or worsening, but in this case, the student is exhibiting signs consistent with contact dermatitis, which can often be managed effectively at school without immediate medical intervention.
D. Washing the affected area with soap and water helps remove any potential irritants or allergens that may be causing the dermatitis. This action can help prevent the condition from worsening and relieve some of the symptoms.