Correct Answer: A

Rationale: A safe patient environment should address the physical, emotional, and psychological well-being of the patient. While socio-economic needs are important for overall patient care, they are not directly related to creating a safe environment within a healthcare setting. Factors such as maintaining sanitation, meeting basic needs, and reducing physical hazards are crucial to ensuring the safety and well-being of patients. However, addressing socio-economic needs falls more within the realm of holistic patient care beyond just the physical safety aspect.

Correct Answer: B

Rationale: Radiologic procedures are typically not used as the least screening assessment by nurses in a perinatal unit. The nurse's initial screening assessments usually focus on gathering information through techniques such as physical examination, interviews, and reviewing laboratory results. Radiologic procedures, such as X-rays or CT scans, are usually ordered by physicians once a more specific diagnostic need has been identified, based on the initial screening assessments performed by the nurse. Therefore, in this scenario, the least screening assessment to be used by the nurse would be radiologic procedures.

Correct Answer: C

Rationale: Humoral immunity is primarily responsible for protecting against infections by pathogens like viruses. In the case of the hepatitis B virus (HBV), the individual is exposed to the virus and develops immunity, which is typically mediated by antibodies produced by B cells. These antibodies circulate in the blood and can neutralize the virus, preventing future infections. This type of immunity is known as humoral immunity, as it involves the production of antibodies that target specific antigens, such as those present on the surface of the hepatitis B virus. In contrast, passive immunity is when antibodies are transferred from an external source, innate immunity provides immediate, non-specific defenses against pathogens, and cell-mediated immunity involves the activation of T cells to combat intracellular pathogens.

Correct Answer: D

Rationale: The presentation described is characteristic of a parathyroid adenoma. Parathyroid adenomas are benign neoplasms that can present as painless, well-defined nodules usually located in the lower pole of the thyroid gland or in close proximity, such as the lateral aspect of the neck above the clavicle. Fine-needle aspiration cytology of a parathyroid adenoma typically reveals polygonal cells with abundant granular cytoplasm, often referred to as chief cells. This is key in differentiating it from other conditions mentioned in the question.

Correct Answer: A

Rationale: Providing education on strategies for initiating and maintaining milk supply should be prioritized to support successful breastfeeding in this situation. Preterm infants can benefit significantly from breast milk due to its unique composition that supports their growth and development. Educating the client on techniques such as pumping to establish and maintain milk supply, proper latching techniques, and understanding the benefits of breastfeeding for preterm infants can help alleviate her concerns and increase her confidence in breastfeeding her premature infant. Additionally, promoting skin-to-skin contact and frequent feedings can also help stimulate milk production and foster bonding between the mother and infant. Encouraging and supporting the client with evidence-based information will be crucial in promoting successful breastfeeding outcomes for the preterm infant.