Chapter 26 Question and answers verified to pass

Chapter 26 Question and answers verified to pass 1. The nurse is caring for a patient who is receiving an intravenous antibiotic. The nurse notes that the provider has ordered serum drug peak and trough levels. The nurse understands that these tests are necessary for which type of drugs? a. Drugs with a broad spectrum b. Drugs with a narrow spectrum c. Drugs with a broad therapeutic index d. Drugs with a narrow therapeutic index - correct answer ANS: D Medications with a narrow therapeutic index have a limited range between the therapeutic dose and a toxic dose. It is important to monitor these medications closely by evaluating regular serum peak and trough levels. 2. The nurse is caring for a patient who is receiving an intravenous antibiotic. The patient has a serum drug trough of 1.5 mcg/mL. The normal trough for this drug is 1.7 to 2.2 mcg/mL. What will the nurse expect the patient to experience? a. Inadequate therapeutic effects b. Increased risk for superinfection c. Excessive adverse effects d. Signs of drug toxicity - correct answer ANS: A Low peak levels indicate that the medication is below the therapeutic level. They do not indicate altered risk for superinfection. Because drug levels are lower than indicated it would not be expected to see excessive adverse effects or signs of drug toxicity.