Correct Answer: A

Rationale: It is recommended for nurses to conduct physical assessments on school children at least three times a year, or thrice a year. This frequency allows nurses to monitor the children's growth and development, assess any changes in their health status, and provide early intervention if needed. Regular physical assessments help ensure that any health issues are identified promptly and addressed appropriately, promoting the overall well-being and academic performance of the students.

Correct Answer: A

Rationale: As a nurse manager, the most effective way to let the staff imbibe the culture of quality at the health center is to become a role model. Leading by example is a powerful way to influence behavior and attitudes within a team. By demonstrating a commitment to quality in your own work, behavior, and decision-making, you set a positive example for your staff to follow. This proactive approach creates a culture of quality that is more likely to be embraced by the team as they see it being consistently demonstrated by their leader. This can result in improved staff morale, motivation, and overall performance in delivering quality care to patients. Additionally, being a role model fosters trust and respect among the staff, which is essential for building a strong team dynamic centered around quality healthcare delivery.

Correct Answer: A

Rationale: The priority nursing intervention for a woman in active labor diagnosed with postpartum hemorrhage (PPH) due to uterine atony is to massage the uterus to promote contraction. Uterine massage helps to stimulate uterine muscle tone and contraction, which can help control bleeding by reducing the size of blood vessels and promoting hemostasis. It is important to address the uterine atony promptly to prevent further blood loss and stabilize the patient's condition. Other interventions such as blood transfusion, administering antibiotics, and elevating the mother's legs can be considered based on the patient's response to the initial intervention of uterine massage.

Correct Answer: D

Rationale: A hard mass and a reddened area on one breast are key clinical signs that confirm the diagnosis of mastitis. Mastitis is an infection of the breast tissue that often presents with localized redness, warmth, and swelling of the breast. The presence of a hard mass along with the other symptoms suggests inflammation and infection within the breast tissue. In contrast, the other findings such as enlarged glands in the axilla, normal temperature, and engorged breasts are not specific findings for mastitis and may be present in other conditions. Therefore, the presence of a hard mass and reddened area on one breast is the additional finding that strongly confirms the diagnosis of mastitis in this case.

Correct Answer: B

Rationale: Opsonization is a process in the immune response where opsonins, which are proteins such as antibodies and complement proteins, bind to pathogens such as bacteria, making them more easily recognized and engulfed by phagocytic cells like macrophages and neutrophils. This coating of pathogens by opsonins enhances the efficiency of phagocytosis, helping in the elimination of pathogens from the body. Opsonins do not facilitate cell lysis, neutralize toxins, or stimulate histamine release; their main function is to tag pathogens for phagocytosis.