A nurse is caring for a postpartum client in an outpatient setting. Exhibits Complete the following sentence by using the lists of options. The client is at highest risk for developing dropdown evidenced by the client's dropdown.

Rationale for Correct Choices • Mastitis: The client is breastfeeding and presents with a visible cracked nipple, which provides an entry point for bacteria. Mastitis is a common postpartum infection of the breast tissue, particularly when nipple trauma or milk stasis is present, increasing the risk of inflammation and infection. • Cracked nipple: The cracked nipple is a clear portal of entry for bacteria, especially Staphylococcus aureus. This physical finding directly predisposes the client to mastitis, making it the most immediate risk factor in this scenario. Rationale for Incorrect Choices • Perineal hematoma: A perineal hematoma typically occurs shortly after delivery due to trauma to the perineal blood vessels. This client is 2 weeks postpartum, with only mild perineal discomfort reported, making a hematoma unlikely at this stage. • Endometritis: Endometritis usually presents within the first week postpartum with fever, uterine tenderness, and foul-smelling lochia. This client denies abdominal pain, has no fever, and reports normal lochia, making endometritis unlikely. • Large for gestational age newborn: While the client delivered a newborn weighing 4,508 g, this factor primarily increases the risk for birth trauma, shoulder dystocia, or perineal injury. It does not directly predispose to mastitis. • Group B streptococcus: Group B strep status primarily affects the newborn risk and prophylactic antibiotic decisions during labor. In the absence of postpartum infection symptoms in the mother, GBS is not the key factor contributing to mastitis in this client.