Which test results require the most immediate action by the nurse?

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.

A. This level indicates average blood glucose over the past 2-3 months and is higher than the target range (usually under 7% for many patients with diabetes). While this result suggests the need for adjustments in management, it is not an immediate emergency.
B. A random plasma glucose level of 205 mg/dL indicates hyperglycemia, but it is not typically considered an immediate danger unless accompanied by symptoms of hyperglycemia. This level would warrant further monitoring and possibly an adjustment in treatment, but it doesn't require urgent intervention.
C. A blood glucose level of 45 mg/dL indicates hypoglycemia, which is a critical condition that requires immediate action. Hypoglycemia can lead to symptoms such as confusion, seizures, or loss of consciousness, and it must be addressed quickly, usually with fast-acting carbohydrates.
D. While a fasting blood glucose level of 300 mg/dL indicates significant hyperglycemia, it does not require immediate action like hypoglycemia does. This level indicates a need for further management but is not acutely dangerous compared to a severely low blood glucose level.