b. "Everyone who lives in the home will need medication."

The nurse should inform the guardian that everyone who lives in the home will need medication when reinforcing teaching about enterobiasis. Enterobiasis, also known as pinworm infection, is highly contagious, and it can easily spread from person to person within the household. Treating only the affected individual may not be sufficient to eliminate the infection completely, as other household members may also be infected or at risk of reinfection.

Explanation for the other options:

a. "One dose of medication is all that will be necessary." Enterobiasis is typically treated with a medication regimen that involves taking multiple doses over a period of time. This is to ensure that all stages of the pinworm life cycle are targeted and eradicated. A single dose is usually not sufficient to eliminate the infection completely.

c. "Allow the child to take tub baths instead of showers." The choice of tub baths or showers does not directly impact the treatment or prevention of enterobiasis. Both methods of bathing can be used, but it is important to maintain good hygiene practices, such as regular handwashing and proper cleaning of the perianal area, to reduce the risk of reinfection.

d. "Wash all clothes and bed linens in cold water." While proper hygiene practices and laundering of clothes and bed linens are important in preventing the spread of enterobiasis, using cold water alone may not be sufficient. Washing clothes and bed linens in hot water (at a temperature of at least 60°C or 140°F) is recommended to kill any pinworm eggs that may be present.

Montelukast is a medication commonly prescribed for the management of asthma symptoms, including the prevention of asthma attacks. The recommended dosing regimen for montelukast is typically once daily, usually in the evening. This helps to provide continuous control of asthma symptoms and reduce the risk of asthma exacerbations.

Administer the medication when the toddler has an acute asthma attack: Montelukast is not intended for immediate relief during an acute asthma attack. It is a long-term control medication aimed at preventing asthma symptoms and reducing the frequency and severity of attacks. For acute asthma attacks, a short-acting bronchodilator such as albuterol is typically used.

Provide an additional dose of the medication prior to physical activity: Montelukast is not specifically indicated as a pre-exercise medication for asthma. However, in some cases, healthcare providers may prescribe it if exercise-induced bronchoconstriction is a significant concern. It is important to follow the specific instructions provided by the healthcare provider regarding medication use before physical activity.

Mix the medication in juice prior to administration: Montelukast tablets or chewable tablets should not be crushed or mixed in juice unless specifically instructed by the healthcare provider. They should be administered whole and taken with water. If the child has difficulty swallowing tablets, alternative formulations like oral granules or chewable tablets may be available.