Correct Answer: A

Rationale: In the case of Romy being diagnosed with small cell lung cancer (SCLC) and undergoing palliative treatment, the most appropriate nursing action is to focus on providing relief from symptoms. Palliative care aims to improve the quality of life for patients with serious illnesses by managing their symptoms, such as pain, shortness of breath, nausea, and other side effects of treatment. As the cancer is advanced and the goal is not curative treatment but rather to keep the patient comfortable, symptom management becomes a priority to ensure Romy's physical comfort and well-being during this difficult time. Providing relief from symptoms is crucial in palliative care to help enhance the patient's quality of life and ensure they are as comfortable as possible.

Correct Answer: B

Rationale: During the acute phase response, C-reactive protein (CRP) primarily serves to activate the complement system. CRP binds to phosphocholine on the surface of pathogens, allowing for the activation of the classical pathway of the complement system. This leads to the recruitment of immune cells, opsonization of pathogens, and enhancement of phagocytosis. The activation of the complement system by CRP plays a crucial role in the host defense against infections, aiding in the elimination of pathogens and the resolution of inflammation.

Correct Answer: D

Rationale: Sudden chest pain, dyspnea, and tachycardia in a postpartum client can be indicative of serious conditions such as pulmonary embolism or myocardial infarction. These conditions are emergencies that require immediate medical attention. Notifying the healthcare provider immediately is the priority to ensure prompt evaluation and intervention to address the potential life-threatening situation. While other nursing interventions such as elevating the head of the bed, providing supplemental oxygen therapy, and administering analgesics may be necessary, they should be done after notifying the healthcare provider to ensure appropriate management of the underlying cause.

Correct Answer: A

Rationale: The development of autoantibodies such as antinuclear antibodies (ANA) and anti-double-stranded DNA (anti-dsDNA) antibodies in systemic lupus erythematosus (SLE) is primarily attributed to a loss of self-tolerance. Self-tolerance refers to the immune system's ability to recognize and differentiate self-antigens from foreign antigens. In individuals with SLE, there is a breakdown in immune tolerance mechanisms, leading to the production of autoantibodies against self-antigens like nuclear components (e.g., DNA, RNA, histones). This loss of self-tolerance results in the immune system targeting and attacking its tissues, leading to the systemic inflammation and tissue damage characteristic of SLE. The presence of elevated levels of ANA and anti-dsDNA antibodies in this patient suggests an autoimmune response against nuclear material, further supporting the role of self-tolerance breakdown in SLE

Correct Answer: D

Rationale: An elevation of blood pressure would warrant stoppage of pills. High blood pressure, or hypertension, in a 4-year-old child is abnormal and needs prompt medical attention. Giving pills without monitoring or stopping them if blood pressure is elevated can lead to serious health complications. It is important to address the underlying cause of high blood pressure in a child, which may require further evaluation and management by a healthcare provider.