Nokea
Which of the following cell types is primarily responsible for presenting antigens to T cells during the immune response?
- A. B cells
- B. Natural killer (NK) cells
- C. Macrophages
- D. Eosinophils
Correct Answer: C
Rationale: The correct answer is C: Macrophages. Macrophages are antigen-presenting cells that engulf pathogens and present their antigens to T cells, initiating an immune response. They express major histocompatibility complex (MHC) molecules necessary for T cell recognition. B cells also present antigens but primarily to B cells for antibody production. NK cells are involved in killing infected cells, not antigen presentation. Eosinophils are mainly involved in allergic responses and defense against parasites, not antigen presentation.
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A surgeon accidentally cuts his patient's bladder while attempting to remove his appendix. The surgeon could be guilty of _________
- A. Battery
- B. Negligence
- C. Malpractice
- D. Tort
Correct Answer: C
Rationale: The correct answer is C: Malpractice. Malpractice refers to professional negligence or failure to perform duties according to accepted standards of practice. In this scenario, the surgeon's act of cutting the patient's bladder during an appendectomy could be considered a breach of duty and failure to provide the expected standard of care, which falls under malpractice. Battery (A) involves intentional harmful or offensive contact without consent. Negligence (B) is the failure to exercise reasonable care, but in this case, it was more than just a lack of care. Tort (D) refers to a civil wrong that causes harm, but malpractice is a specific type of tort related to professional negligence.
A postpartum client complains of persistent, heavy vaginal bleeding beyond the expected timeframe. Which nursing action is most appropriate?
- A. Encouraging the client to increase fluid intake
- B. Applying a cold compress to the perineum
- C. Assessing vital signs and uterine tone
- D. Administering pain medication as ordered
Correct Answer: C
Rationale: In a postpartum client complaining of persistent, heavy vaginal bleeding, the most appropriate nursing action is to assess vital signs and uterine tone. This is important to determine if the bleeding is within normal limits or if there is a potential postpartum hemorrhage (PPH) occurring. Monitoring vital signs can help identify signs of shock, while assessing uterine tone can help determine if the uterus is contracting effectively to control bleeding. Prompt assessment and early detection of PPH are crucial for effective management and prevention of complications. Encouraging increased fluid intake, applying a cold compress, and administering pain medication may be appropriate interventions in some situations, but assessing vital signs and uterine tone take priority in this scenario.
Nurse Erika tap all the newly hired nurses to be members of her new project. she is observing the ethical principle of ________.
- A. Justice
- B. Nonmaleficence
- C. Autonomy
- D. Respect
Correct Answer: A
Rationale: The correct answer is A: Justice. Nurse Erika is ensuring fairness by including all newly hired nurses in her project without discrimination. Justice in healthcare promotes equity and equal opportunities. Nonmaleficence (B) refers to the duty to do no harm, not relevant here. Autonomy (C) relates to respecting individuals' right to make decisions for themselves, not evident in the scenario. Respect (D) is important but not the primary ethical principle demonstrated here.
A postpartum client presents with persistent, severe perineal pain and swelling following a vaginal delivery. On assessment, the nurse notes ecchymosis and tenderness of the perineum. Which nursing action is most appropriate?
- A. Applying ice packs to the perineum for pain relief
- B. Encouraging the client to sit on a donut cushion
- C. Notifying the healthcare provider immediately
- D. Administering additional analgesic medication
Correct Answer: C
Rationale: The most appropriate nursing action in this situation is to notify the healthcare provider immediately. The client presenting with persistent, severe perineal pain and swelling, along with ecchymosis and tenderness of the perineum, could be indicative of complications such as a perineal hematoma. A perineal hematoma is a collection of blood in the perineal tissues and can be a serious postpartum complication requiring prompt medical attention. Therefore, it is crucial to alert the healthcare provider so that appropriate assessment, management, and treatment can be initiated promptly. Applying ice packs or encouraging the client to sit on a donut cushion may not be sufficient in this situation, and administering additional analgesic medication should be done only after the healthcare provider has assessed and determined the cause of the symptoms.
A patient expresses concerns about the financial implications of their treatment plan. What is the nurse's best response?
- A. Dismiss the patient's concerns and assure them that the treatment plan is necessary.
- B. Provide the patient with information about financial assistance programs and resources.
- C. Ignore the patient's concerns and proceed with implementing the treatment plan.
- D. Tell the patient that financial concerns should not affect their decision-making.
Correct Answer: B
Rationale: The correct answer is B because the nurse's role is to address the holistic needs of the patient, including financial concerns. Providing information about financial assistance programs and resources shows empathy and supports the patient in making informed decisions.
Choice A is incorrect because dismissing the patient's concerns can lead to a breakdown in trust and communication. Choice C is incorrect as ignoring the patient's concerns is not addressing the patient's needs. Choice D is incorrect because financial concerns are valid and should be considered in decision-making.