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.

b. Methylergonovine.

Explanation:

Postpartum hemorrhage is a significant complication that can occur after childbirth. Methylergonovine is a medication commonly used to manage postpartum hemorrhage. It is an ergot alkaloid that helps to contract the uterus, reducing bleeding. It is typically administered either intramuscularly or orally.

Option a, Terbutaline, is a medication used for the management of preterm labor by relaxing the uterine smooth muscles. It is not indicated for postpartum hemorrhage.

Option c, Magnesium sulfate, is a medication used for the prevention and treatment of seizures in patients with preeclampsia or eclampsia. It is not specifically indicated for postpartum hemorrhage.

Option d, Nifedipine, is a calcium channel blocker commonly used to manage hypertension. It is not indicated for postpartum hemorrhage.

It's important to note that the specific management of postpartum hemorrhage may vary depending on the underlying cause, severity of bleeding, and individual patient factors. The healthcare provider will determine the most appropriate interventions and medications for each case.