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 administering fluid resuscitation to a patient who sustained fourth-degree burns to 25% of the body and third-degree burns to 15% of the body. The patient weighs 210 pounds. Using the Parkland formula, how many milliliters should the nurse plan for the patient to receive in the first 24 hours of resuscitation?

The patient is receiving a continuous heparin infusion that started at 0000 for the treatment of a deep vein thrombosis in the leg. Prior to the initiation of therapy, the patient’s activated partial thromboplastin time (aPTT) level was 35 seconds. The aPTT level drawn at 0800 was found to be 70 seconds. The nurse reports this information to the provider and advocates for which intervention?