The patient is being treated with intravenous quinidine for malaria that was contracted while in Africa. Several hours after administration of the medication, the patient develops palpitations and dizziness. Electrocardiogram shows tachycardia and twisting of the QRS complexes around an isoelectric line. Which best describes the most likely etiology of this patient’s arrhythmia?

The 32-week-gestation, 1.9 kg neonate has been prescribed intravenous ampicillin for concerns for sepsis. The dose is 150 mg/kg/d divided into 2 doses administered over 15 minutes. The pharmacy dispenses the medication in a 5 mL vial that contains 250 mg of medication. At what rate will the nurse program the medication to infuse? Round your answer to the nearest tenth decimal.

The 30-year-old female patient presents to the emergency department complaining of double vision, bilateral facial drooping, diffuse muscle weakness, difficulty swallowing, and shallow respirations. The nurse anticipates administering which medication to confirm this patient’s diagnosis?