Correct Answer: A

Rationale: Natural killer (NK) cells play a vital role in the innate immune response by identifying and eliminating virus-infected cells, as well as tumor cells, without the need for prior exposure or activation. NK cells are able to detect abnormal cells by recognizing changes in the cell surface molecules, such as downregulation of MHC class I molecules. Once activated, NK cells release cytotoxic granules containing perforin and granzyme, leading to the destruction of the target cell. This direct killing mechanism is crucial for controlling viral infections and preventing the development of tumors. NK cells do not produce antibodies (option B), present antigens to T cells (option C), or release cytokines to recruit other immune cells (option D) as their primary function in the immune response.

Correct Answer: B

Rationale: Molluscum contagiosum is a viral skin infection caused by the poxvirus. It typically presents as multiple dome-shaped, translucent papules with central umbilication on the face and trunk. The lesions are usually asymptomatic but can be itchy. Molluscum contagiosum is a common infection in children but can also occur in adults, especially those who are immunocompromised. The lesions can gradually increase in number over time. Basal cell carcinoma, sebaceous hyperplasia, and keratoacanthoma do not typically present with the characteristic features of molluscum contagiosum.

Correct Answer: D

Rationale: Bronze baby syndrome is the term used to describe the transient discoloration of a baby's skin while undergoing phototherapy treatment for jaundice. This phenomenon typically occurs in preterm infants and is believed to be caused by the breakdown of bilirubin into colored pigments during phototherapy. The discoloration can range from a bronze or brownish color to a grayish-green hue. One key characteristic of bronze baby syndrome is that the discoloration is reversible once phototherapy is complete and does not indicate any underlying health concerns. It is important for healthcare providers to be aware of this phenomenon to avoid unnecessary interventions or alarm to the caregivers.

Correct Answer: D

Rationale: Nurse Merle has to renew her license on or before January 6, 2022, as that date falls at the end of the standard two-year license renewal cycle for nurses in many jurisdictions. Renewing on or before this date will ensure that Nurse Merle maintains her active licensure status and can continue practicing legally without any interruptions. It is important for healthcare professionals like nurses to stay current with their licensure to uphold professional standards and provide quality care to patients.

Correct Answer: B

Rationale: In order to create a comprehensive education plan, the nurse must include all of the listed components.