A nurse is caring for a client receiving theophylline therapy. Which of the following assessments should the nurse prioritize?

C) Correct. Leukotriene receptor antagonists are not intended for immediate relief during an asthma attack. They are long-term control medications used to manage and prevent asthma symptoms. Clients should have a separate rescue inhaler for acute symptom relief.

A) Incorrect. Taking the medication on an empty stomach may enhance its absorption, although it can be taken with or without food.

B) Incorrect. Leukotriene receptor antagonists have been associated with mood changes, including depression and suicidal ideation. Therefore, it is important to notify the healthcare provider if any mood changes occur.

D) Incorrect. The client should continue using their other asthma medications as prescribed, as leukotriene receptor antagonists are often used as an adjunct therapy for asthma management.

B) Correct. Monitoring serum theophylline levels is crucial when caring for a client receiving theophylline therapy. Theophylline has a narrow therapeutic range, and monitoring blood levels helps ensure therapeutic effectiveness while minimizing the risk of toxicity. The nurse should assess the client's theophylline levels regularly and adjust the dosage as necessary.

A) Incorrect. While blood pressure monitoring is important, it is not the priority assessment specifically related to theophylline therapy.

C) Incorrect. Theophylline can affect liver function, but liver function tests are not the priority assessment in this case.

D) Incorrect. Pulmonary function tests are not directly related to theophylline therapy and do not require prioritization in this scenario.