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A pregnant woman presents with vaginal bleeding and crampy abdominal pain at 22 weeks gestation. On examination, the cervix is dilated, and the amniotic sac is visible at the cervical os. Which of the following conditions is the most likely cause of these symptoms?
- A. Ectopic pregnancy
- B. Threatened abortion
- C. Placenta previa
- D. Incompetent cervix
Correct Answer: D
Rationale: Incompetent cervix, also known as cervical insufficiency, is the most likely cause of the symptoms described. Incompetent cervix is a condition where the cervix begins to dilate and efface prematurely, typically in the second trimester, without contractions or labor. This can lead to painless cervical dilation and bulging of the amniotic sac into the vagina, which can cause vaginal bleeding and crampy abdominal pain. It is a leading cause of second-trimester pregnancy loss. Treatment may involve a cervical cerclage, a surgical procedure where the cervix is stitched closed to provide additional support.
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A patient presents with progressive weakness, muscle atrophy, and fasciculations, primarily involving the upper and lower extremities. Over time, the patient develops difficulty swallowing and breathing. Which of the following neurological conditions is most likely responsible for these symptoms?
- A. Parkinson's disease
- B. Guillain-Barré syndrome (GBS)
- C. Amyotrophic lateral sclerosis (ALS)
- D. Myasthenia gravis
Correct Answer: C
Rationale: The symptoms described are classic for amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease. ALS is a progressive neurodegenerative disease that affects nerve cells in the brain and spinal cord, leading to muscle weakness and atrophy. Patients typically present with weakness, muscle atrophy, fasciculations (muscle twitching), and eventually develop difficulty swallowing and breathing due to involvement of the muscles responsible for these functions. Parkinson's disease (Choice A) is a neurodegenerative disorder characterized by tremors, rigidity, and bradykinesia but does not typically present with muscle atrophy or fasciculations as described in the case. Guillain-Barré syndrome (GBS) (Choice B) is an acute inflammatory condition affecting peripheral nerves, leading to ascending paralysis, which is usually reversible. Myasthenia gravis (Choice D) is an autoimmune disorder that affects neu
A patient receiving palliative care for end-stage lung disease experiences dyspnea and anxiety. What intervention should the palliative nurse prioritize to address the patient's symptoms?
- A. Administer supplemental oxygen therapy to improve oxygenation.
- B. Teach the patient diaphragmatic breathing exercises for respiratory support.
- C. Prescribe benzodiazepine medications to reduce anxiety and promote relaxation.
- D. Refer the patient to a pulmonologist for evaluation and treatment of dyspnea.
Correct Answer: B
Rationale: Teaching the patient diaphragmatic breathing exercises for respiratory support would be the most appropriate intervention to address the symptoms of dyspnea and anxiety in this scenario. Diaphragmatic breathing, also known as belly breathing, focuses on engaging the diaphragm for deep, slow breaths, which can help improve lung expansion and ventilation. This technique can help the patient manage their breathing difficulty and reduce anxiety by promoting relaxation and improving oxygen exchange in the lungs. It empowers the patient with a coping strategy they can use independently to alleviate distressing symptoms at any time. Administering oxygen therapy may be beneficial, but the priority is to teach the patient a technique they can use proactively and routinely. Prescribing benzodiazepines should be considered as an adjunct if non-pharmacological interventions are ineffective in managing anxiety. Referring to a pulmonologist may be necessary for comprehensive evaluation and treatment but may not directly address the immediate symptoms of dyspnea and anxiety.
Ms. Nena suggested to use an analytic approach in their research. Which of the following statements BEST describes the analytic approach?
- A. Focuses on the community's health problems and issues
- B. Utilizes health indicators to define population health
- C. Views factors that influence health and by which interventions to improve health are directed
- D. Addresses the social determines of health to solve community's problems.
Correct Answer: C
Rationale: The analytic approach refers to a method that views factors that influence health and by which interventions to improve health are directed. In this case, utilizing an analytic approach in the research means looking into the root causes of the health problems in the community, analyzing various factors that contribute to the prevalence of obesity and heart ailments, and developing targeted interventions to address these issues effectively. This approach involves identifying underlying reasons for health problems and strategically planning interventions to improve the health outcomes of the community.
Which of the following statements accurately describes the role of dendritic cells in the immune response?
- A. Dendritic cells directly kill infected cells and tumor cells.
- B. Dendritic cells produce antibodies against pathogens.
- C. Dendritic cells activate na(cid:239)ve T cells and initiate adaptive immune responses.
- D. Dendritic cells release histamine and other inflammatory mediators.
Correct Answer: C
Rationale: Dendritic cells play a critical role in initiating adaptive immune responses by capturing antigens from pathogens, migrating to lymphoid organs, and presenting these antigens to naïve T cells. This activation of naïve T cells by dendritic cells is essential for the adaptive immune system to generate specific immune responses against pathogens. Dendritic cells act as professional antigen-presenting cells, which are specialized to capture, process, and present antigens to T cells, thereby facilitating the activation of T cells and the coordination of adaptive immune responses, such as the production of specific antibodies and the generation of memory T cells.
The nurse in the practice of her profession is guided by ________.
- A. code of ethics
- B. local government code
- C. standards of care
- D. Nursing processs
Correct Answer: A
Rationale: The nurse in the practice of her profession is guided by a code of ethics, which outlines the moral duties and professional responsibilities of nurses. The code of ethics provides a framework for ethical decision-making and sets standards for professional behavior within the nursing profession. Nurses are expected to adhere to the principles of the code of ethics in order to promote the well-being and safety of their patients, maintain professional integrity, and uphold the values of nursing practice.