The nurse reviews the lab values.

Exhibits

What questions can the nurse ask the client based on the lab results? Select all that apply.

a) Assess the client for side effects of carbamazepine:

• This option might seem reasonable as monitoring for side effects is essential with any medication, especially one with a narrow therapeutic range like carbamazepine. However, the client's level of 8.4 mcg/L is within the therapeutic range (4 to 12 mcg/mL), so there's no immediate indication that side effects are likely to occur solely based on this level.

b) Notify the healthcare provider of the carbamazepine level:

• While it's important to keep the healthcare provider informed about the client's condition, in this case, the carbamazepine level is within the therapeutic range. There's no urgent need to notify the provider unless there are other concerning factors not mentioned in the scenario.

c) Administer the carbamazepine as prescribed:

• This is the correct answer. The client's morning carbamazepine level of 8.4 mcg/L falls within the therapeutic range (4 to 12 mcg/mL). Therefore, the evening dose should be administered as prescribed to maintain therapeutic levels and control the client's condition.

d) Withhold this dose of the carbamazepine:

• Withholding the dose based solely on the morning carbamazepine level of 8.4 mcg/L, which is within the therapeutic range, would not be appropriate. Withholding the dose without consulting the healthcare provider could potentially lead to suboptimal management of the client's condition.

choice A, Drawing the peak level two hours after the IV dose is too late to capture the drug's highest serum concentration. Similarly, drawing the trough two hours before the next dose does not reflect the lowest drug level accurately.
Choice B,Drawing the peak level one hour after completion of the IV dose ensures an accurate measurement of the highest serum concentration, as vancomycin typically peaks within this time frame. Drawing the trough one hour before the next dose ensures the lowest concentration of the drug is measured, providing precise therapeutic monitoring.

Choice C is incorrect because drawing blood 30 minutes into the IV dose would not allow the full dose to circulate and reach peak levels in the bloodstream.

Choice D.Drawing the peak level immediately after the completion of the IV dose is too early, as the drug needs time to distribute in the bloodstream and reach its highest concentration. While drawing the trough 30 minutes before the next dose is appropriate, the incorrect timing of the peak makes this option unsuitable.