A nurse is planning care for a newborn who is scheduled to start phototherapy using a lamp. Which of the following actions should the nurse include in the plan?

The correct answer is choice A. Provide the client with a cool sitz bath.

Choice A rationale:

Providing a cool sitz bath helps reduce swelling and provides pain relief for the perineum, which is crucial for a client with a fourth-degree laceration. Cool sitz baths are recommended in the initial postpartum period to soothe the area and promote healing.

After a vaginal delivery, most women experience swelling of the perineum and consequent pain. This is intensified if the woman has had an episiotomy or a laceration. Routine care of this area includes ice applied to the perineum to reduce the swelling and to help with pain relief. Conventional treatment is to use ice for the first 24 hours after delivery and then switch to warm sitz baths. However, little evidence supports this method over other methods of postpartum perineum treatment. Pain medications are helpful both systemically as nonsteroidal anti-inflammatory drugs (NSAIDs) or narcotics and as local anesthetic spray to the perineum.

Hemorrhoids are another postpartum issue likely to affect women who have vaginal deliveries. Symptomatic relief is the best treatment during this immediate postpartum period because hemorrhoids often resolve as the perineum recovers. This can be achieved by the use of corticosteroid creams, witch hazel compresses, and local anesthetics in addition to a bowel regimen that avoids constipation.

Tampon use can be resumed when the patient is comfortable inserting the tampon and can maintain it without discomfort. This often takes longer for the woman who has had an episiotomy or a laceration than for one who has not. The vagina and perineum should first be fully healed, which takes several weeks. Tampons must be changed frequently to prevent infection.

Choice B rationale:

Administering methylergonovine 0.2 mg IM is typically used to manage postpartum hemorrhage by contracting the uterus. It is not directly related to the care of a perineal laceration.

Choice C rationale:

Applying a moist, warm compress to the perineum is generally not recommended in the immediate postpartum period for a fourth-degree laceration. Warm compresses might be used later, but initially, cool treatments are preferred to reduce swelling.

Choice D rationale:

Applying povidone-iodine to the perineum after voiding is not a standard practice for managing a fourth-degree laceration. It is more important to keep the area clean and dry, and povidone-iodine can be irritating to the sensitive tissue.

The correct answer is choice C. Ultrasonography is a diagnostic tool used during pregnancy to visualize the fetus and the maternal reproductive organs. In the first trimester of pregnancy, it is primarily used to determine gestational age, confirm the presence of an intrauterine pregnancy, and assess for fetal viability. It can also be used to identify multiple gestations, evaluate for ectopic pregnancy, and detect certain fetal anomalies. Ultrasound is not typically used to observe for placental maturity or to perform a biophysical profile in the first trimester. Intrauterine growth restriction is typically assessed later in pregnancy using serial ultrasound measurements.