A nurse is caring for a client admitted with meningitis. The student nurse asks, "I know that the client has a lot of edemas in the brain, but what causes it?" Which of the following responses from the nurse best answers the student's question?
"Cerebral edema is caused by osmotic cerebral edema."
"Cerebral edema is caused by whole body inflammation which affects the brain the most."
"Cerebral edema is caused by the by-products of the pathogen that causes the meningitis."
"Cerebral edema is caused by cerebrospinal fluid flowing from the intraventricular space to the interstitial area of the brain."
The Correct Answer is C
A. Osmotic edema refers to fluid shifts due to changes in osmotic gradients (as seen in conditions like hyponatremia), not the inflammatory process of meningitis.
B. While inflammation is a key part of the body's response in meningitis, the edema is not a result of generalized whole-body inflammation. The edema is more directly linked to local inflammatory reactions in the brain triggered by the pathogen’s by-products.
C. Bacterial cell walls, endotoxins, and other components released by the bacteria directly stimulate inflammation, causing the breakdown of the BBB and allowing fluid and inflammatory cells to leak into the brain tissue.
D. This description is more aligned with the pathophysiology of conditions like hydrocephalus rather than meningitis. In meningitis, cerebral edema is primarily due to the inflammatory response, not abnormal CSF flow.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
Choice A Reason:
Pupillary dilation is correct. Pupillary changes can indicate neurological dysfunction following a head injury. Dilated pupils may suggest increased intracranial pressure or damage to specific brain structures.
Choice B Reason:
Persistent headache is correct .Headaches are a common symptom following a head injury. Persistent or worsening headaches can indicate ongoing neurological issues and should be monitored closely.
Choice C Reason:
Presence of hand tremors is incorrect. Hand tremors are not typically associated with loss of consciousness following a motor vehicle accident. While hand tremors can occur in various conditions, such as essential tremor or Parkinson's disease, they are not typically a direct manifestation of a head injury. The primary concern immediately following a motor vehicle accident with loss of consciousness is assessing for signs of neurological dysfunction, such as altered level of consciousness, pupillary changes, and persistent headache. Hand tremors may be assessed in other contexts, but they are not directly related to the immediate assessment of a client following a motor vehicle accident with loss of consciousness.
Choice D Reason:
Difficulty waking is correct. Difficulty waking or altered level of consciousness can indicate neurological impairment and may be indicative of a concussion or other brain injury.
E. Foot drop is incorrect. Foot drop refers to difficulty lifting the front part of the foot, which can cause dragging of the foot or toes along the ground while walking. While foot drop can result from various neurological conditions or injuries, it is not typically associated with loss of consciousness following a motor vehicle accident. Loss of consciousness after a motor vehicle accident is more indicative of potential head trauma or concussion, which may present with symptoms such as altered level of consciousness, headache, pupillary changes, or difficulty waking. Foot drop would be more relevant to assess in contexts related to peripheral nerve injury, spinal cord injury, or neurological conditions affecting the lower extremities. Given the scenario provided, foot drop is not a typical manifestation that the nurse would assess for immediately following a motor vehicle accident with loss of consciousness. Therefore, option E is not relevant in this scenario.
Correct Answer is ["B","C","D","E"]
Explanation
Choice A Reason:
Pleural cavity decompression via needle aspiration is inappropriate. Pleural cavity decompression via needle aspiration may be indicated in cases of tension pneumothorax, a potentially life-threatening condition in which air accumulates in the pleural space and compresses the lung. While it is an intervention rather than a diagnostic tool, it may be performed emergently if tension pneumothorax is suspected based on clinical findings.
Choice B Reason:
Focused assessment with sonography in trauma (FAST) is appropriate. FAST is a bedside ultrasound examination commonly used in trauma settings to rapidly assess for the presence of free fluid in the pericardial, pleural, and peritoneal spaces. It can help identify hemopericardium, hemothorax, or intra-abdominal hemorrhage, which may be indicative of thoracic injury.
Choice C Reason:
Chest x-ray is appropriate. Chest x-ray is a commonly used imaging modality for evaluating thoracic injuries. It can help visualize abnormalities such as rib fractures, pneumothorax, hemothorax, pulmonary contusions, or other traumatic injuries to the chest.
Choice D Reason:
Thoracentesis is appropriate. Thoracentesis is a procedure used to sample fluid from the pleural space for diagnostic or therapeutic purposes. It may be indicated if there is a suspicion of pleural effusion or if fluid accumulation is seen on imaging studies such as chest x-ray or ultrasound.
Choice E Reason:
Ultrasound is appropriate. Ultrasound can be used to evaluate various aspects of thoracic injuries, including the presence of pneumothorax, hemothorax, or pleural effusion. It is often used as part of the FAST examination but can also be performed separately for more detailed assessment.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
