Adult Health Nursing Study Guide Answers

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: A

Rationale: The sensation of feeling "heavy" in the perineal area postpartum is a common concern due to the stretching and potential trauma to the perineal muscles during childbirth. Kegel exercises are specifically designed to strengthen the pelvic floor muscles, which can help alleviate this sensation of heaviness. By encouraging the client to perform Kegel exercises regularly, the nurse is promoting the restoration and strengthening of the perineal muscles, ultimately helping the client feel more comfortable and supported in that area. This education empowers the client to take an active role in their own recovery and promotes optimal healing postpartum.

Correct Answer: C

Rationale: According to Erikson's theory of psychosocial development, the stage of Identity versus Role Confusion occurs during adolescence, which is typically around the ages of 12 to 18 years old. This stage is characterized by the individual exploring and developing their personal identity, values, and beliefs.

Correct Answer: D

Rationale: It is essential for the nurse to instruct the patient to "Report any unusual bleeding or bruising to your healthcare provider." Warfarin is a medication that works by decreasing the clotting ability of the blood. This can increase the risk of bleeding, so it is important for the patient to be vigilant for any signs of abnormal bleeding. Prompt reporting of any unusual bleeding or bruising allows healthcare providers to adjust the dosage of warfarin to maintain a balance between preventing blood clots and minimizing the risk of bleeding complications. This instruction emphasizes the importance of close monitoring and communication with healthcare providers while on warfarin therapy.

Correct Answer: C

Rationale: In this scenario, the action that violates a psychiatric patient's rights is option C, where staff members confiscated written letters done by patients addressed to the local newspaper. Patients have the right to communicate freely and express their thoughts and feelings through various means, such as letter-writing. Confiscating these letters is a violation of their rights to free expression and communication. It is essential to respect and uphold the rights of psychiatric patients, including their right to communicate with others.