A nurse is providing discharge instructions to a client who has asthma and is about to start taking theophylline (Theo-24). The nurse should tell the client that this medication might cause which of the following adverse effects?

Status asthmaticus is a severe and potentially life-threatening asthma exacerbation that does not respond well to usual treatment measures. The primary goal in managing status asthmaticus is to relieve the bronchospasm and improve airflow. Short-acting 62-agonists, such as albuterol, are bronchodilators that work quickly to relax the smooth muscles of the airways, providing immediate relief of bronchospasm.

While determining the cause of the acute exacerbation and obtaining a peak flow reading are important aspects of asthma management, in the case of status asthmaticus, the immediate priority is to administer a bronchodilator to alleviate the severe symptoms and improve the child's breathing. Once the acute symptoms are addressed, further assessment and interventions can be carried out to identify the cause and monitor the child's condition.

Expectorants are medications that help to loosen and thin mucus in the respiratory tract, making it easier to cough up and expel. They work by increasing the production of respiratory tract secretions, which helps to hydrate and thin the mucus, making it less sticky and easier to clear from the airways. By stimulating the production and secretion of mucus, expectorants promote coughing and facilitate the removal of excess mucus and phlegm from the respiratory system.

It's important to note that expectorants are primarily used for productive coughs (coughs that produce phlegm or mucus). If the cough is dry and non-productive, other types of cough suppressants or remedies may be more appropriate.

Regarding the other options:

Reduces inflammation: Expectorants do not have a direct effect on reducing inflammation in the respiratory tract. Anti-inflammatory medications such as glucocorticoids are typically used for reducing inflammation in conditions like asthma or chronic obstructive pulmonary disease (COPD).

Dries mucous membranes: Expectorants do not have a drying effect on mucous membranes. In fact, they work to increase the hydration and fluidity of respiratory secretions.

Suppresses the urge to cough: Expectorants do not suppress the urge to cough. They promote coughing by facilitating the clearance of mucus and phlegm from the airways. Cough suppressants, on the other hand, are medications used to relieve a dry, non-productive cough by suppressing the cough reflex.