Adult Health Nursing Study Guide Answers

Correct Answer: D

Rationale: Scabies is caused by an infestation of the microscopic mite Sarcoptes scabiei. This parasitic mite burrows into the upper layer of the skin, where it lays eggs and causes intense itching and skin irritation. The transmission of scabies usually occurs through close and prolonged skin-to-skin contact with an infested person. Unlike viruses, bacteria, and fungi, which are microorganisms that can also cause skin infections, scabies specifically refers to an infestation by a parasitic mite.

Correct Answer: B

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

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: C

Rationale: While proton pump inhibitors (PPIs) are commonly prescribed for the treatment of peptic ulcer disease to help heal ulcers and reduce acid production, it is important for the nurse to educate the patient about potential risks associated with PPI therapy. PPIs have been associated with an increased risk of gastrointestinal bleeding, especially in patients with a history of peptic ulcer disease. It is crucial for the patient to be aware of this risk and to take precautions, such as avoiding other medications that can increase bleeding risk and informing healthcare providers about any signs of bleeding, such as black stools or abdominal pain. Educating the patient about this potential adverse effect allows for early recognition and prompt intervention if necessary.

Correct Answer: D

Rationale: Fats are essential for the absorption of vitamin K in the body. Vitamin K is a fat-soluble vitamin, meaning it is better absorbed in the presence of dietary fats. In the case of postpartum hemorrhage, adequate levels of vitamin K are crucial for proper blood clotting. Thus, incorporating fats in the diet can help ensure sufficient absorption of vitamin K, which can be beneficial in preventing complications related to hemorrhage.