The nurse is assigned to a 55-year-old patient with Streptococcus viridans endocarditis who is receiving penicillin and amikacin. The nurse is vigilant for which adverse effect?

The patient is receiving intravenous gentamicin to treat a gram-negative infection. The nurse draws a gentamicin trough level immediately prior to the 4th dose; the result is 2.2 µg/mL. Which of the following conclusions would be most appropriate given this result?

The nurse is caring for a 57-year-old woman who is intubated and sedated in the post-anesthesia care unit following a radical hysterectomy. The patient remained stable throughout the 6 hour surgery during which she experienced a 2 L blood loss. The nurse has emptied the patient’s indwelling catheter every hour for the 3 hours the patient has been in the PACU with the following volumes: 54 mL, 23 mL, 12 mL, and 5 mL. Her heart rate is 112 bpm, oxygen saturation is 99%, and blood pressure is 82/54mmHg. The patient received maintenance fluids during the procedure and no blood transfusions. How many liters of isotonic fluid does the nurse anticipate administering to the patient during the postoperative period? Enter your response using a whole number.