A nurse is teaching the guardian of a newborn about formula feeding. Which of the following instructions should the nurse include?

A. “Take your diuretic medication with your evening meal." Taking diuretics in the evening can increase nighttime urination, worsening sleep disruption and incontinence. They should generally be taken in the morning to minimize nocturia.
B. "Decrease your intake of cranberry juice." Cranberry juice is often recommended to promote urinary tract health, though it doesn’t directly worsen urge incontinence. It is not necessary to avoid it unless advised by a provider for another reason.
C. "Plan to urinate every 3 hours while you are awake." Scheduled voiding at regular intervals is a key strategy in bladder retraining. It helps reduce urgency episodes and gradually increases bladder capacity and control over time.
D. “Limit your fluid intake to 500 milliliters per day." Severely limiting fluids can lead to dehydration, concentrated urine, and bladder irritation, potentially worsening incontinence. Adequate fluid intake should be maintained unless otherwise directed.

• Endometritis – This uterine infection is one of the most common postpartum complications, especially following cesarean delivery and prolonged rupture of membranes. It often presents with foul-smelling lochia, uterine tenderness, and systemic signs of infection like fever and leukocytosis. This client’s presentation, including foul-smelling lochia and a WBC of 33,000/mm³, strongly supports this diagnosis.
• Mastitis – Typically associated with localized breast pain, redness, swelling, and systemic symptoms like fever. While the client has nipple discomfort and firm breasts, these are common postpartum findings during milk let-down and do not meet the criteria for mastitis, especially without signs of inflammation or localized breast infection.
• Pulmonary embolism – A PE generally presents with sudden-onset chest pain, dyspnea, tachypnea, and hypoxia. This client’s oxygen saturation is normal, lung sounds are clear, and there is no respiratory distress, making PE unlikely.
• Postpartum hemorrhage – Hemorrhage would present with excessive vaginal bleeding, hypotension, tachycardia, and possibly uterine atony. This client’s uterus is firm, lochia is moderate (not heavy), and vital signs are stable, so hemorrhage is not supported by the data.
• Lochia assessment – Foul-smelling lochia is a classic indicator of uterine infection. It points to endometritis when found with other risk factors like cesarean birth, prolonged labor, and signs of systemic inflammation.
• Elevated white blood cell count – A postpartum WBC count may be mildly elevated, but a level of 33,000/mm³ suggests infection. When combined with clinical symptoms like uterine tenderness and malodorous discharge, it supports a diagnosis of endometritis.
• Firm uterus at 1 cm above umbilicus – This finding is expected on postpartum day 3 and indicates normal uterine involution. A firm uterus rules out uterine atony and is not specific to infection or hemorrhage.
• Moderate nipple discomfort – Breast fullness and nipple tenderness are common in breastfeeding mothers, especially in the early postpartum period. This discomfort alone does not indicate mastitis or any systemic infection.