nurse is teaching a client who has a new prescription for codeine. Which of the following instructions should the nurse include in the teaching?

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.

Montelukast is a medicine used to treat and prevent asthma and allergic rhinitis. It can cause some side effects, such as stomach pain, headache, cough, or fever. However, some side effects are more serious and need to be reported to the provider.

According to the sources I found, the most serious side effect of montelukast that should be reported to the provider is depression. Depression is a mental health condition that can affect your mood, thoughts, and behavior. It can cause symptoms such as feeling sad, hopeless, or worthless; losing interest in activities you used to enjoy; having trouble sleeping or concentrating; or having thoughts of harming yourself or others.

Montelukast has been linked to neuropsychiatric events, such as agitation, aggression, sleep disturbances, suicidal thoughts and behavior (including suicide). The mechanisms underlying these events are not well understood, but they can occur at any time during treatment. Therefore, patients and caregivers should be alert for changes in behavior or new neuropsychiatric symptoms when taking montelukast. If these occur, they should discontinue montelukast and contact a healthcare provider immediately.

The other options are not listed as serious side effects of montelukast that need to be reported to the provider. Constipation, blurred vision, and palpitations are possible side effects of other medicines used to treat asthma or allergic rhinitis, such as corticosteroids, antihistamines, or beta-agonists. However, they are not specific to montelukast and may not be related to its use.