The patient is being evaluated for obstructive sleep apnea. For which test does the nurse prepare the patient?

The nurse is reviewing the lab results of a patient with heart failure and notes a sodium of 126 mEq/dL. Which action by the nurse would be appropriate, if agreed to by the provider?

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 nurse anticipates which findings on a chest x-ray?