Nokea
Which of the following statements accurately describes the process of opsonization during the immune response?
- A. Opsonins facilitate the lysis of target cells by forming membrane attack complexes.
- B. Opsonins promote the phagocytosis of pathogens by coating them with proteins.
- C. Opsonins neutralize toxins produced by pathogens.
- D. Opsonins stimulate the release of histamine from mast cells.
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.
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Public health services are provided by government facilities. What is the most appropriate response of a public health nurse to the statement: The government should give these health services free of charge to people?
- A. "Yes and for that reason, we should choose our government officials wisely during elections".
- B. "Yes, I agree. But right now, the government does not have enough resources to do that".
- C. "That is an ideal situation that our government does not have enough resources to do that".
- D. "Many of the health services are given free, but we people pay for them just the same through our taxes".
Correct Answer: D
Rationale: The most appropriate response is "Many of the health services are given free, but we people pay for them just the same through our taxes." This response acknowledges the fact that public health services are funded by taxpayers, even though they may be perceived as free by the public. It highlights the connection between government funding and the provision of health services, emphasizing that these services are not truly free but are paid for through taxes. It also addresses the misconception that these services are entirely free without any costs involved.
A patient with acute exacerbation of chronic obstructive pulmonary disease (COPD) demonstrates hypercapnia and respiratory acidosis on arterial blood gas analysis. Which of the following ventilatory strategies is most appropriate for managing the patient's respiratory failure?
- A. Low tidal volume ventilation
- B. High-flow nasal cannula therapy
- C. Non-invasive positive pressure ventilation (NIPPV)
- D. Invasive mechanical ventilation with lung protective strategy
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.
Vangie, 73 years old, comorbid with hypertension and asthma died of COVID Ariel grieved and mourned to the loss of his mother's untimely death. He is now aware that his mother is one of those 13, 425 deaths. The nurse will consider stage of grieving process is Ariel at what experiencing?
- A. Depression
- B. Denial and Anger
- C. Bargaining
- D. Acceptance
Correct Answer: A
Rationale: Ariel is likely experiencing the stage of depression in the grieving process. The stages of grief, according to the Kubler-Ross model, are denial, anger, bargaining, depression, and acceptance. In this scenario, Ariel has come to terms with his mother's death and is mourning her loss, which aligns with the stage of depression characterized by feelings of sadness, hopelessness, and intense sorrow. It is a normal part of the grieving process for individuals to experience these emotions as they process their loss.
The ER nurse clarifies the doctor's prescription on the dose of the pain medication based on the pain scale assessment and patient's age. which ethical principle is applied?
- A. Fidelity
- B. Truthfulness
- C. Justice
- D. Non-maleficence
Correct Answer: D
Rationale: Non-maleficence is the ethical principle that emphasizes the obligation to avoid causing harm to patients. In this scenario, the ER nurse clarifies the doctor's prescription to ensure the correct dosage of the pain medication based on the pain scale assessment and the patient's age. By doing so, the nurse is ensuring that the medication is safe and effective for the patient, thus adhering to the principle of non-maleficence. This action demonstrates the nurse's commitment to preventing harm and promoting the well-being of the patient through proper medication management.
Which of the following laboratory findings is most consistent with acute respiratory distress syndrome (ARDS)?
- A. Elevated serum bicarbonate (HCO3-) level
- B. Decreased serum albumin level
- C. Elevated white blood cell count (WBC)
- D. Increased lactate dehydrogenase (LDH) level
Correct Answer: D
Rationale: Acute respiratory distress syndrome (ARDS) is a severe condition characterized by widespread inflammation in the lungs leading to increased pulmonary vascular permeability, non-cardiogenic pulmonary edema, and respiratory failure. In ARDS, the alveolar-capillary barrier is disrupted, resulting in fluid accumulation in the alveoli and impaired gas exchange.