The 20-year-old patient with asthma presents to the emergency department with increased work of breathing and severe wheezing after exposure to household dust and mold. The patient used the albuterol inhaler 6 times in the previous 4 hours with minimal relief. Upon inspection, the nurse notes extensive accessory respiratory muscle use with moderate supraclavicular retractions and nasal flaring. The nurse auscultates expiratory wheezing in all lung fields. The patient is afebrile, normotensive, significantly tachypneic, and mildly tachycardic. The chest x-ray is clear. The nurse prepares to administer which medication first? 

The nurse is reviewing the chart of a patient who has been prescribed metronidazole for bacterial vaginosis. Which medication, if present in the patient’s current medication history would prompt the nurse to hold the metronidazole and contact the provider?

The patient with a severe peanut allergy was inadvertently exposed to peanuts at work. Dyspnea persists despite the patient using the epinephrine autoinjector and emergency medical services was contacted. Which concentration of epinephrine does the first responder prepare for intramuscular injection?