Correct Answer: A

Rationale: The correct answer is A: 'Blood pressure 80/50 mm Hg.' Hypotension can be a side effect of oxytocin administration. A blood pressure of 80/50 mm Hg should be reported to the provider. Choice B, 'Uterine contractions,' is an expected finding as oxytocin is used to stimulate uterine contractions. Choice C, 'Urine output 150 mL in 2 hours,' is within the expected range postpartum. Choice D, 'Client reports cramping,' is a common finding due to uterine contractions and is not a cause for concern unless excessive or severe.

Correct Answer: D

Rationale: To prevent mastitis, the nurse should instruct the client to ensure that the newborn empties one breast before switching to the other. This helps to prevent milk stasis, reducing the risk of inflammation and infection. Choice A is incorrect because feeding on demand is recommended to establish a good milk supply and prevent engorgement. Choice B is incorrect as warm compresses are usually applied before feeding to promote milk flow. Choice C is incorrect because massaging the breast after feedings can actually increase the risk of mastitis by causing further irritation.

Correct Answer: B

Rationale: A contraction duration of 90 seconds can indicate uterine tachysystole, which may lead to fetal hypoxia. Uterine tachysystole is defined as more than five contractions in 10 minutes, averaged over a 30-minute window. Contractions every 2 minutes (Choice A) may occur in active labor but need to be assessed in conjunction with other factors. A fetal heart rate of 150/min (Choice C) is within the normal range. Urine output of 60 mL/hr (Choice D) is also within the expected range for a client in labor.

Correct Answer: B

Rationale: The correct instruction for the nurse to include is to offer both breasts at each feeding. This practice helps ensure the baby receives hindmilk from both breasts, promoting adequate milk intake and stimulating milk production. Option A is incorrect as newborns should be breastfed on demand rather than on a strict schedule. Option C is inappropriate as it can interfere with establishing and maintaining a sufficient milk supply. Option D is inaccurate as newborns typically do not sleep through the night at one month; they need to feed frequently for proper growth and development.

Correct Answer: B

Rationale: The correct answer is B: 'You should avoid consuming liquids with your meals.' This advice is essential because avoiding drinking liquids with meals can help prevent overdistension of the stomach, which can worsen nausea. Option A is incorrect because eating foods high in protein before bedtime may not directly address the issue of nausea and vomiting. Option C is incorrect as eating three large meals a day may exacerbate nausea due to overeating or having an empty stomach for an extended period. Option D is incorrect as consuming caffeine can actually worsen nausea in pregnant clients.