A patient presents with recurrent episodes of deep vein thrombosis (DVT) and pulmonary embolism (PE). Laboratory tests reveal elevated levels of antiphospholipid antibodies (anticardiolipin and lupus anticoagulant). Which of the following conditions is most likely to cause these findings?

Correct Answer: D

Rationale: Antiphospholipid syndrome is characterized by abnormal antiphospholipid antibodies, which can lead to an increased risk of blood clots such as deep vein thrombosis (DVT) and pulmonary embolism (PE). The two most common antiphospholipid antibodies are anticardiolipin and lupus anticoagulant. Patients with antiphospholipid syndrome can present with recurrent thrombotic events, such as DVT and PE, due to the pro-thrombotic effects of these antibodies. Protein C deficiency, Protein S deficiency, and Antithrombin III deficiency are other causes of hypercoagulability but would not typically present with elevated antiphospholipid antibodies.

Correct Answer: D

Rationale: The clinical presentation of chest pain, dyspnea, and a friction rub heard on auscultation is suggestive of pericarditis. The diffuse ST-segment elevation seen on the electrocardiogram (ECG) is a classic finding in pericarditis, known as the "universal sign." In contrast, stable angina typically presents with chest pain on exertion that is relieved by rest or nitroglycerin, while unstable angina presents with chest pain at rest or with minimal exertion. Acute myocardial infarction would typically present with ST-segment elevation in specific leads correlating with the area of myocardial ischemia/infarction. However, in the context of diffuse ST-segment elevation and symptoms suggestive of inflammation (friction rub), the most likely diagnosis is pericarditis.

Correct Answer: B

Rationale: The formulation of a vision and mission statement in a health facility is an essential aspect of leadership and management. A well-crafted vision and mission statement provide the organization with a clear direction and purpose, guiding management and health personnel in their daily activities. It helps in aligning individual goals with organizational objectives, fostering teamwork, and enhancing overall performance. Effective leadership and management ensure that the vision and mission are communicated effectively, understood by all stakeholders, and implemented throughout the organization to achieve quality standards. By setting the tone for organizational culture and values, leadership and management play a crucial role in shaping the quality of care and services provided by the health facility.

Correct Answer: C

Rationale: Uterine rupture is a severe obstetric complication that requires prompt and decisive management to prevent adverse outcomes for both the mother and the baby. In cases of uterine rupture leading to fetal distress and maternal hemorrhage, performing an emergency cesarean section is crucial. This intervention allows for rapid delivery of the baby, relieving the distress on the fetus and enabling immediate access to manage the maternal hemorrhage. By performing a timely cesarean section, healthcare providers can expedite the delivery process and effectively address both the fetal and maternal complications associated with uterine rupture. This intervention is essential in saving lives and reducing the risk of further complications in such a critical obstetric emergency.

Correct Answer: D

Rationale: A directional hypothesis predicts the direction of the relationship between variables. In this case, the statement "A significant relationship exists between the caring behaviors of the staff-nurses and degree of satisfaction of ostomized patients" clearly indicates the direction of the expected relationship. This hypothesis suggests that there will be a positive or negative relationship between the caring behaviors of staff nurses and the satisfaction of ostomized patients. The terms "significant relationship" and "degree of satisfaction" indicate that the hypothesis is specific and measurable, making it suitable for testing through research methods.

Correct Answer: D

Rationale: For a diagnostic pelvic ultrasound, one important preparation is to have the patient void or empty their bladder before the procedure. This allows for better visualization of the pelvic organs and structures during the ultrasound scan. A full bladder can obstruct the view and make it difficult to obtain accurate images. Therefore, it is essential for the patient to follow instructions to empty their bladder before the pelvic ultrasound to ensure the best results.

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: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: C

Rationale: In a primiparous patient who complains of unrelieved perineal pain on the first postpartum day, Nurse Kayla should assess for a perineal hematoma. A perineal hematoma is a collection of blood in the perineal tissues and can cause significant pain and discomfort. It can be a result of trauma during delivery or due to a blood vessel rupture. This condition requires prompt assessment and intervention to prevent complications such as infection or excessive bleeding. Vaginal laceration would typically be identified during the delivery process and would have been repaired by the healthcare provider. History of drug abuse, while important to know for overall patient care, is not as relevant in this immediate postpartum pain assessment. Puerperal infection usually presents with other signs such as fever, foul-smelling discharge, and uterine tenderness, which are not mentioned in this scenario.