The nurse is caring for a 15-year-old patient who has been diagnosed with mononucleosis. The patient asks how the infection was obtained. Which information should the nurse include when responding to the patient?

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. Cephalosporins are a class of antibiotics that can, in some cases, cause liver enzyme elevations and hepatotoxicity. While not all cephalosporins are associated with significant liver toxicity, there have been reports of liver dysfunction with some members of this class.
B. Sulfonamides can also cause hepatotoxicity, particularly in certain individuals. They are known to occasionally lead to liver enzyme elevations and even more severe liver damage in susceptible patients.
C. Penicillins are generally considered safe regarding hepatotoxicity; however, there can be rare instances of liver enzyme elevation associated with some penicillin derivatives, particularly in cases of prolonged use or in patients with existing liver disease. Nonetheless, they are not commonly associated with significant hepatotoxicity.
D. Fluoroquinolones can cause liver toxicity, although it is relatively rare. Some fluoroquinolones have been associated with elevated liver enzymes and other hepatic issues.