Correct Answer: B

Rationale: In patients with Rheumatic fever, typical manifestations include an increase in body temperature, non-pruritic rashes, and migratory joint pains. Voluntary muscle spasm is not a typical manifestation of Rheumatic fever. The main clinical features of Rheumatic fever are related to the inflammation of the heart, joints, skin, and central nervous system. Muscle spasms are not a prominent feature of this condition. It is important for the nurse to be aware of these typical manifestations to effectively monitor and manage the patient's condition.

Correct Answer: C

Rationale: The practice of advocacy in nursing involves assessing the client's point of view and preparing to articulate this viewpoint. Advocacy requires that nurses actively listen to their patients, understand their perspectives, and ensure that their needs and wishes are communicated effectively within the healthcare team. By advocating for the client's point of view, nurses can help empower their patients to make informed decisions about their care and ensure that their best interests are always prioritized.

Correct Answer: D

Rationale: In a patient with acute exacerbation of COPD who presents with hypercapnia and respiratory acidosis, the most appropriate ventilatory strategy is invasive mechanical ventilation with a lung protective strategy. This involves using lower tidal volumes and limiting plateau pressures to prevent ventilator-induced lung injury.

Correct Answer: A

Rationale: In a pregnant woman presenting with severe abdominal pain, syncope, signs of hypovolemic shock, and gestational age of 6 weeks, the most likely cause is an ectopic pregnancy. An ectopic pregnancy occurs when a fertilized egg implants outside the uterus, commonly in the fallopian tube. As the pregnancy grows and the tube stretches, it can lead to rupture, causing severe abdominal pain, internal bleeding, and signs of shock. This is a life-threatening emergency that requires prompt diagnosis and management. It is important to consider ectopic pregnancy in any pregnant woman presenting with abdominal pain and signs of shock, especially in the first trimester.

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.