Nokea
Which of the following terms refers to the process by which antibodies coat the surface of pathogens, marking them for destruction by phagocytes or complement proteins?
- A. Opsonization
- B. Neutralization
- C. Agglutination
- D. Precipitation
Correct Answer: A
Rationale: Opsonization refers to the process by which antibodies bind to the surface of pathogens, marking them for destruction by phagocytes or complement proteins. This coating of antibodies enhances the ability of the immune system to recognize and eliminate the pathogens effectively. Phagocytes (such as macrophages and neutrophils) are better able to engulf and digest pathogens that have been opsonized, as the antibodies attached to the pathogen surface signal to the phagocytes that they are foreign invaders. This process is crucial in the body's immune response to infections and helps in clearing pathogens from the system.
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The nurse, as the community organizer, immerses self by joining local folks in their usual everyday activities in ordwwer to ______.
- A. gain trust and rapport of people
- B. make self popular among people
- C. identify and spot leaders
- D. become familiar with the place
Correct Answer: A
Rationale: Immersing oneself in the local community and participating in their everyday activities allows the nurse, as a community organizer, to establish trust and build rapport with the people. By actively engaging with the community members, the nurse can show genuine interest and commitment to their well-being, which fosters a sense of connection and mutual understanding. This approach is crucial for gaining the trust of the community, as it demonstrates that the nurse is invested in listening to their needs and working together to address health concerns effectively.
Which criterion refers-to the ability of the instrument to detect fine differences among the subjects being studied?
- A. Reliability
- B. objectivity
- C. Sensitivity
- D. Validity
Correct Answer: C
Rationale: Sensitivity refers to the ability of an instrument to detect small or fine differences among the subjects being studied. In the context of research or measurement tools, sensitivity is crucial for identifying subtle variations in the data that may hold importance in the analysis. A sensitive instrument can accurately measure and record even the smallest changes, making it a valuable criterion when assessing the quality of a measurement tool in research studies. High sensitivity indicates that the instrument is more likely to pick up on nuances and variations in the data, providing researchers with more detailed and accurate information to work with.
A patient admitted to the ICU develops acute intracerebral hemorrhage (ICH) with elevated intracranial pressure (ICP). What intervention should the healthcare team prioritize to manage the patient's ICP?
- A. Initiate hypertonic saline therapy for osmotic diuresis.
- B. Perform emergent craniotomy for hematoma evacuation.
- C. Implement head-of-bed elevation to promote cerebral venous drainage.
- D. Recommend sedative medications to reduce agitation and anxiety.
Correct Answer: B
Rationale: In cases of acute intracerebral hemorrhage (ICH) with elevated intracranial pressure (ICP), a significant factor contributing to the elevated ICP is often the mass effect caused by the hematoma within the brain. Performing an emergent craniotomy for hematoma evacuation is a critical intervention to relieve the pressure within the intracranial space, thereby mitigating the risk of herniation and further neurological damage. While other interventions such as hypertonic saline therapy, head-of-bed elevation, and sedative medications may have supporting roles in managing ICP, none address the primary cause of elevated ICP in cases of acute intracerebral hemorrhage as effectively as hematoma evacuation through craniotomy.
Which assessment findings is INDICATIVE of the diagnosis of hypertension?
- A. Family members with high blood pressure
- B. Elevation of blood cholesterol level
- C. Stressful work environment
- D. Consistent evaluation of blood pressure
Correct Answer: D
Rationale: The assessment finding that is indicative of the diagnosis of hypertension is consistent evaluation of blood pressure. Hypertension is diagnosed based on repeated measurements of elevated blood pressure. Consistently high blood pressure readings, usually defined as systolic blood pressure consistently at or above 140 mmHg and diastolic blood pressure consistently at or above 90 mmHg, are a key factor in diagnosing hypertension. Family history of high blood pressure (Choice A), elevation of blood cholesterol level (Choice B), and a stressful work environment (Choice C) may be risk factors for hypertension but are not diagnostic criteria. In order to diagnose hypertension, healthcare providers rely on consistent measurement and evaluation of blood pressure over time.
A patient presents with gross hematuria, flank pain, and a palpable abdominal mass. Imaging reveals a large heterogeneous renal mass with areas of necrosis and calcifications. Which of the following conditions is most likely?
- A. Renal cell carcinoma
- B. Renal cyst
- C. Renal abscess
- D. Renal angiomyolipoma
Correct Answer: A
Rationale: The clinical presentation of gross hematuria, flank pain, palpable abdominal mass, along with imaging findings of a large heterogeneous renal mass with necrosis and calcifications are highly suggestive of renal cell carcinoma (RCC). RCC is the most common type of kidney cancer in adults. The presence of necrosis and calcifications are characteristic features of RCC. Imaging modalities such as CT scans or MRI can confirm the diagnosis by showing the typical features of RCC, including a solid mass with areas of necrosis and calcifications. It is important to further evaluate this patient, likely with a biopsy, to confirm the diagnosis and determine the extent of the disease for appropriate management.