The nurse assessing a newborn knows that the most critical physiologic change required of the newborn is:
Initiation and maintenance of respirations.
Full function of the immune defense system at birth.
Maintenance of a stable temperature.
Closure of fetal shunts in the circulatory system.
The Correct Answer is A
Choice A rationale
The initiation and maintenance of respirations is the most critical and immediate physiological change after birth, as the newborn must transition from placental gas exchange to pulmonary gas exchange. The first breath inflates the lungs, causing a drop in pulmonary vascular resistance, which is the essential step for establishing independent life and facilitating the necessary circulatory changes post-delivery.
Choice B rationale
The full function of the immune defense system is not achieved at birth. The newborn relies on passive immunity from maternal Immunoglobulin G (IgG) crossing the placenta. The newborn's own immune system, particularly Immunoglobulin A (IgA) and full cellular immunity, matures over time, making this a gradual rather than critical immediate change.
Choice C rationale
Maintenance of a stable temperature is vitally important but secondary to establishing respiration. While the newborn is prone to cold stress, which increases oxygen consumption, the ability to oxygenate via the lungs must be present first. Temperature stability is a homeostatic challenge the newborn faces, but not the initial, most critical physiologic change.
Choice D rationale
The closure of fetal shunts (foramen ovale, ductus arteriosus, ductus venosus) is a crucial circulatory change that occurs after the initiation of respiration and the subsequent drop in pulmonary vascular resistance. These shunts typically begin to close within the first hours or days of life, making it an essential secondary change dependent on successful primary respiratory initiation. .
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Starting an IV infusion is an important intervention for postpartum hemorrhage, but it is not the first action. The immediate priority is to address the most likely cause of the rapid saturation, which is uterine atony, by directly stimulating uterine contraction. IV fluids would follow the initial fundal assessment and massage.
Choice B rationale
Assessing vital signs is a crucial action to determine the severity of blood loss and shock (e.g., hypotension, tachycardia). However, the finding of rapid pad saturation indicates active, excessive bleeding, making the immediate priority stopping the flow by massaging the fundus before assessing for systemic compromise.
Choice C rationale
Calling the primary health care provider is necessary after the initial interventions and stabilization attempts have begun and the full scope of the bleeding is assessed. The nurse must first implement the immediate, non-pharmacological intervention, which is fundal massage, to manage the acute bleeding.
Choice D rationale
A pad saturated in 15 minutes indicates postpartum hemorrhage. The first action must be to assess the firmness of the fundus. If it is boggy (soft), the nurse must massage the fundus vigorously to stimulate uterine contractions, which compresses the open blood vessels at the placental site, thus reducing the bleeding. —.
Correct Answer is C
Explanation
Choice A rationale
While new parents need time to bond and establish their own family routines, a categorical statement telling grandparents to "leave you alone" is non-therapeutic and antagonistic. The nurse's role is to promote communication and identify resources, and grandparents can be significant sources of physical and emotional support, which is vital for maternal mental health and adjustment to parenthood.
Choice B rationale
A statement invoking the age or mortality of the grandparents uses emotional manipulation, which is inappropriate for a professional counseling relationship. This shifts the focus from the new parents' needs and the functional role of the grandparents to an appeal based on guilt or obligation, thus not providing an appropriate, objective explanation of their potential contribution.
Choice C rationale
Grandparents often possess a wealth of practical parenting knowledge and wisdom gained through experience, offering a positive resource for overwhelmed new parents. Furthermore, their involvement is crucial for the intergenerational transmission of cultural values and family history, helping the child develop a sense of identity and connection within the extended family structure.
Choice D rationale
While grandparent involvement can cause conflict if boundaries are not established, the blanket statement that it is "very disruptive" is judgmental and overgeneralized. The nurse should promote the potential benefits and then address potential conflicts by facilitating a conversation about establishing healthy boundaries and roles, which utilizes a more constructive and supportive approach.
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