A nurse in a clinic is teaching the mother of a 4-month-old infant who has been breastfed. The mother plans to switch her infant to an iron-fortified formula. Which of the following should be included in the teaching?

Choice a reason:
A fundus that is palpable to the right of the midline can indicate a distended bladder. After childbirth, the bladder can become distended due to decreased sensitivity, which may be caused by trauma during delivery or the effects of anesthesia. A distended bladder can push the uterus to the side and prevent it from contracting properly, leading to increased bleeding. It's important for the nurse to encourage the client to void to relieve bladder distension and allow the uterus to contract effectively.

Choice b reason:
Less than 2.5 cm of rubra lochia on the perineal pad does not necessarily indicate bladder distension. Lochia rubra is the normal discharge of blood, mucus, and tissue from the uterus after childbirth, and its amount can vary widely among individuals. While heavy lochia can be a sign of postpartum hemorrhage, it is not directly related to bladder distension.

Choice c reason:
Increased thirst in a postpartum client is not a direct indicator of bladder distension. Thirst can be influenced by various factors, including dehydration from labor, breastfeeding, or hormonal changes. While it's important for a postpartum client to stay hydrated, increased thirst alone does not suggest a distended bladder.

Choice d reason:
Frequent uterine contractions reported by the client are not a sign of bladder distension. These contractions, known as afterpains, are normal and occur as the uterus contracts to return to its pre-pregnancy size. While uncomfortable, they are a sign of the uterus working to expel blood and tissue and do not indicate bladder issues.

Choice A reason: The rubella vaccine is a live attenuated virus vaccine, which is generally not recommended during pregnancy due to the theoretical risk to the fetus. However, it is safe to receive the rubella vaccine while breastfeeding; it does not pose a risk to the nursing infant.

Choice B reason: The varicella vaccine, which is also a live virus vaccine, should not be administered during pregnancy because of the potential risk to the fetus. Women should be vaccinated before pregnancy or in the postpartum period.

Choice C reason: The Tdap vaccine, which protects against tetanus, diphtheria, and pertussis (whooping cough), is recommended for all pregnant women during each pregnancy, regardless of their previous history of receiving the vaccine. The optimal timing for Tdap administration is between 27 and 36 weeks of gestation to maximize the transfer of antibodies to the baby.

Choice D reason: Pregnant women are encouraged to receive the inactivated influenza vaccine at any point during their pregnancy. The flu shot is safe during pregnancy and helps protect both the mother and the baby from the flu and its complications.