The patient has been taking apixaban for 4 weeks. Which monitoring test does the nurse review to evaluate the efficacy of the medication?

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 receives an order to administer digoxin 0.125 mg intramuscularly each morning to a patient in heart failure. Which part of the order does the nurse question?