A woman in active labor demonstrates persistent fetal malpresentation, with the fetus in a transverse lie position. What nursing intervention should be prioritized to address this abnormal labor presentation?

Correct Answer: C

Rationale: In cases of persistent fetal malpresentation, such as a transverse lie position, a cesarean section is often the safest and most effective intervention to address the abnormal labor presentation. Delivering a baby in a transverse lie position vaginally is associated with high risks, including fetal complications such as umbilical cord prolapse and head entrapment. Therefore, to ensure the safety of both the mother and the baby, a cesarean section is usually the most appropriate and timely intervention to address this situation. It is crucial to prioritize the immediate preparation and facilitation of a cesarean section in cases of persistent fetal malpresentation to prevent potential complications and ensure the best outcome for the mother and the baby.

Correct Answer: B

Rationale: Dental caries, commonly known as tooth decay, is characterized by the irreversible demineralization of the enamel and dentin due to acids produced by bacterial activity. This process leads to cavitation and destruction of the tooth structure, ultimately resulting in the formation of a cavity. Gingivitis is inflammation of the gums, periodontitis is inflammation and infection of the supporting structures of the teeth (gums, bone, and ligaments), and a dental abscess is a collection of pus in the tissues surrounding the tooth, none of which are specifically related to the irreversible demineralization of enamel and dentin seen in dental caries.

Correct Answer: A

Rationale: Somatic hypermutation is the mechanism responsible for generating diversity in the antigen-binding sites of immunoglobulins. During somatic hypermutation, point mutations are introduced into the variable regions of immunoglobulin genes in B cells. These mutations occur randomly and lead to a wide range of amino acid changes in the antigen-binding sites of antibodies. As a result, a diverse repertoire of antibodies with varying specificities for different antigens is created. Gene rearrangement and isotype switching are other mechanisms that contribute to antibody diversity but do not specifically target the antigen-binding sites. Clonal expansion, on the other hand, refers to the proliferation of specific B cell clones after activation by antigens, which amplifies the immune response but does not directly impact the diversity of antigen-binding sites.

Correct Answer: B

Rationale: The cardiovascular disorder most likely responsible for the symptoms described is a pericardial effusion. A pericardial effusion is an accumulation of fluid within the pericardial space surrounding the heart. When a large pericardial effusion is present, it can lead to compression of the heart chambers, resulting in symptoms such as chest pain and dyspnea.

Correct Answer: A

Rationale: The primary responsibility for obtaining informed consent lies with the surgeon who will be performing the procedure. Informed consent is a process where the healthcare provider explains the procedure, benefits, risks, and alternatives to the patient, allowing them to make an informed decision about their care. While other healthcare team members may also participate in this process, the ultimate responsibility typically rests with the surgeon as they are the one performing the surgery.

Correct Answer: B

Rationale: An abdominal ultrasound is the imaging test that uses a transducer and is most commonly ordered by physicians to detect gallstones. This non-invasive procedure allows the physician to visualize the gallbladder and detect any presence of gallstones. The transducer emits sound waves that bounce off the gallstones, creating images that can be seen on a screen. This imaging test is safe, reliable, and effective in diagnosing gallstones without the use of radiation or contrast dye.

Correct Answer: A

Rationale: Prolonged rupture of membranes (>24 hours) increases the risk of intrauterine infection for both the mother and the fetus. When the amniotic sac has been ruptured for an extended period, there is a higher likelihood of bacteria entering the uterus, leading to chorioamnionitis (inflammation of the fetal membranes due to infection). Intrauterine infection can be dangerous for both the mother and fetus, potentially causing sepsis, preterm labor, and other complications. Therefore, it is crucial for the nurse to assess for signs and symptoms of infection in both the mother and fetus when managing a woman in active labor with prolonged rupture of membranes.

Correct Answer: A

Rationale: Option A, "Can we talk about Mrs. Santos?" is indicative of a collaborative relationship between the nurse and the attending physician. It shows open communication and a willingness to discuss the patient's case together, which is essential for optimal patient care. This statement implies teamwork and a shared responsibility for the patient's well-being. The other options either lack a collaborative tone, show concern without inviting discussion, or suggest a dismissive attitude towards addressing the patient's needs.

Correct Answer: C

Rationale: When a patient is at risk of falls due to an impaired gait, a physical therapist would be the most appropriate member of the multidisciplinary team for the nurse to collaborate with. Physical therapists specialize in improving mobility, balance, and coordination through exercises, gait training, and other interventions. They can assess the patient's gait pattern, strength, and balance, and develop a personalized plan to address the impairments contributing to the fall risk. By working closely with a physical therapist, the nurse can help the patient improve their gait and reduce the risk of falls, ultimately promoting safety and independence.